vomit inducing local delicacies
We here in Hawaii have a delicacy called "poi", which is made of beaten and mashed up taro root, and is incredibly vile. It has a gluey consistency, and a color thats sort of purplish brown, with greenish grey overtones. Local custom dictates that newcomers must be made to try it, under pain of ostracization and being thought unsympathetic to local culture, which supposedly is greatly superior to all other cultures, simply because we have nice weather most of the time. DO NOT ever under any circumstances try this stuff...it makes English cuisine look positively wonderful by comparison (i KNOW, b3tA is a British Thing, but still...).

Also, SPAM is considered a great delicacy hereabouts. One of the funniest things I've ever seen was a note stuck to the refrigerator door of one of my cronies, which read: "Honey, don't eat the Spam Casserole...we're having company for dinner". I've declined every invitation to eat there since.

ETA: My Irish grandparents used to try to make me eat all sorts of dreck, like the ever popular Bangers and Mash or "Bombers and Trash" as my siblings and I used to call it. Not for me thanks!
(eggman59, Tue 13 Jul 2004, 9:56, Reply)

Offal
Believe it or not I used to work at Buckingham Palace. To make up for the awful wages, the canteen tried to be really posh and come up with "exotic" dishes. After a huge night out my mate struggled to lunch and ordered something as safe and bland as possible to help his toxic belly. So he gets the dish of the day which looks like mushrooms and rice. Wasn't mushrooms though was it...fucking chicken livers. He nearly died after the first mouthful and damn near broke his neck running to the loo to puke.

Chicken fuckin livers.
(robotrob, Tue 13 Jul 2004, 9:39, Reply)

olives.
i fucking hate olives.
(That guy with a hat., Tue 13 Jul 2004, 9:28, Reply)

Marzipan
It's evil. It's poo with a colourant and almond flavouring to make it look like food. Someone recently bought me a box of chocs from their holiday in Denmark. What was in each choc? Marzipan. Wankers.
(Burt Reynolds, Tue 13 Jul 2004, 8:55, Reply)

Warm milk...
Does anyone remember when it was law that all primary school age children had to drink a mini bottle of milk a day? I used to hate it when it was time for break and we had to go into a room that stank of old milk. We were given a little room-temperature bottle of milk and a straw and had to drink it. Yeuchhhh!
(Hazy, Tue 13 Jul 2004, 8:33, Reply)

Tuna is disgusting
I don't care that it's good for you, and every diet in the world insists you eat it by the bucketload in order to lose weight...it's horrible. The smell, the colour, the texture...it has me gypping at 30 paces.
(I have not got fucking Tourettes, Tue 13 Jul 2004, 8:31, Reply)

Yak Cheese
I was hiking in Nepal and they gave us yak cheese rolls for lunch, every day for 2 weeks.

It smells like vomit and tastes like someone has farted in your mouth, whilst having the distinct texture of tire rubber.

One lucky camper also got a boiled egg in which the yolk had developed into a small but unmistakable baby bird.

Never, ever, ever again.
(Jimmy the Moonlight, Tue 13 Jul 2004, 8:29, Reply)

Pea-wet
In chippies around Bolton, folk who are too pikey to buy a pot of peas (45p) can order 'pea-wet' (10p). It's the green, watery liquid that sits at the top of the vat of peas. Chips, scraps, pea-wet and gravy - 90p.
(skindley, Tue 13 Jul 2004, 7:51, Reply)

oh and
when I was three years old I ate a mushroom growing in the front yard. My mother rushed me to the hospital where they induced vomiting and possibly pumped my stomach, I am not too clear on the details but I know I threw up for hours and hours.

I don't object to how they smell or how they taste (I do like their taste in stew or broth) but biting into a cooked or raw mushroom sends me into dry heaves. This is particularly unpleasant when enjoying pasta or a salad unaware that there are chunks of lurking fungus.
( gracielou, Tue 13 Jul 2004, 7:49, Reply)

I used to work at a charity summer camp
where they saved money by serving milk or real fruit juice (to small children and staff alike) once a day, and one can of lukewarm soda with the rare after dinner snack/desert. With other meals (and as the only option besides sketchy tap water at any other time) they served "juice" made from fruit flavoured powdered drink mix, with half the sugar recommended by the package to meet nutritional guidelines (these were never explained, I suspect the guidelines went something like "save money by feeding them past date meat"). This "juice" came in colours, rather than flavours. Even though it was a camp for blind children, they quickly learned to request pink "juice" over purple "juice". I can't tolerate koolaid or the like to this day and only recently have been able to choke down non-carbonated lemonade.
( gracielou, Tue 13 Jul 2004, 7:44, Reply)

Off the top of my head...
peas
brussel sprouts
nutmeat
artichokes
grapes with seeds
mandarines
any animal body organs
[edit] cucumber
(isajones, Tue 13 Jul 2004, 6:46, Reply)

zucchini
I hate zuchini. I was fed this spaghetti sauce when I was little with chunks of the stuff in it. It was REVOLTING. THEN they served up muffins with the stuff in it and teased me when i said i liked them. from then on I always taste zucchini in loaf, muffins, etc.

blackcurrants are disgusting too.

note about eating chicken's feet (aka:'phoenix claws'): you're not supposed to eat the bones! you spit them out.
(NinjaRaven, Tue 13 Jul 2004, 4:59, Reply)

Kentucky Fried Chicken
Oh, gross who eats that shit. In fact who eats Chicken other than the chicken breast?

Anyway, to the story. When I was just a young lad, around 10 t'was eating a drumstick from good ol' KFC, and bit right into a greasy grey artery, never ate there again, ever.
(Human, Tue 13 Jul 2004, 4:48, Reply)

Beef tongue.
No shit, an ex of mine decided to feed me beef tongue for dinner one night.
He showed me the tongue before he cooked it.

Eeeeeeeeeew
( Batshitmentalist is sane for once, Tue 13 Jul 2004, 3:51, Reply)

Boiled eggs are evil, even Boris Johnson says so.
Soft-boiled eggs look nice but they could give you food poisoning. Eurgh.
Hard-boiled eggs are horrible: the white is all rubbery and tasteless and the yolk is powdery and has that thin grey bit around the outside. Eurgh.
In fact, eggs in general are wrong. I'm no veggie, but you're eating half an unborn child. Eurgh.
( Comma, Tue 13 Jul 2004, 2:50, Reply)

The worst?
Pickles! There is no reason for their existance. Restraunts put them on your plate and the leak onto the good stuff. Everything else I can stomach, except maybe Pho soup (bad hangover story about that)

Have any of you heard of Durian - nastiest fruit on the planet - there is no second place.
( Art101 You all have an unhealthy and morbid fascination, Tue 13 Jul 2004, 1:46, Reply)

Tomatoes
I can't stand uncooked tomatoes. The taste, the texture, but especially the smell. I love cooked tomatoes. But raw, they are the grossest things on earth. Don't know why people want them on sandwiches.

I've eaten lots of sushi, roe, octopus, jellyfish, shark's fin, all kinds of nasty things, but I still can't stand tomatoes.
(BenSerwa, Tue 13 Jul 2004, 0:44, Reply)

Fussy
You lot are right fussy bastards. Even honeycomb tripe, which is a really frigging nasty thing to just contemplate, much less eat, is actually swallowable if you're really hungry.

No, the only disgusting stuff you often see nowdays is fruit peel. Look, it's called peel because you peel it off and chuck it away, right? Good, so don't put it in my fucking christmas pudding, christmas cake, and mince frigging pies. Bastards. Every christmas made a throat clenching, retching torment because some people think its clever and hard to put vile bitter lumps of citrus rind in the food. Ho ho bloody ho. Wankers.
(steer, Tue 13 Jul 2004, 0:10, Reply)

The jelly inside pork pies.
Infact, pork pies in general.
And pork in general.
( CaroWallis, Mon 12 Jul 2004, 23:50, Reply)

Celery
because when I was 6 years old, I was given it in a salad. I tasted it once and it made me throw up. But still my evil stepdad made me stay up until midnight eating every last morsel, While standing over me, grinning like a cheshire cat.

I can still hear the evil chuckle now
( SarahRatt, Mon 12 Jul 2004, 23:39, Reply)

Liquor chocolates
Vile. I'm sure there's an OAP trick shop somewhere that sell these.
"Here sonny, have a choccy" says the old lady.
"Thanks" I reply. "eurgg...What the??..." (wretches)
(evil cackles from the old crone)

Alcohol is for getting pissed with for gods sake.

Oh, and almonds. The bastards.
( Fronkle99, Mon 12 Jul 2004, 23:08, Reply)

Artichokes
are the devil's biscuit.
They are simply vomit flavoured leaves and other people seem to delight in mashing them to a pulp and sticking them in half a boiled egg or else just stripping off the leaves on their teeth. I'd rather lick a bubonic elephant's left nut.
(washing_machine, Mon 12 Jul 2004, 23:02, Reply)

Chicken is evil
On the night before my Stag weekend to Hamburg, the wife cooked some chicken escalopes for tea. While she was cooking it, the census people came round to moan we hadn't bothered to fill in the form. After getting rid of the old bat, the wife dished up the food. I had to get up at 6:30 to get ready, but I wish I had had that sort of lie-in. I woke up at 4:30, had to run downstairs to the toilet, and just as I was about to throw up, felt a massive gurgling from down below. I had just ebough time to jump in the bath before I turned into a fetid fountain.

The wife says it was an accident, I'm not so sure.

Still made it to Hamburg though, used muchos alcohol to remove the toxins.
( LuftWaffle, Mon 12 Jul 2004, 22:53, Reply)

Trots.
I, as a present from meh man, got plane tickets for 2 to go to New Orleans for Mardi Drinkingpartygras. We had lots of fun, but we both enjoyed the gumbo. I went to a resteraunt one fateful night and decided to get the gumbo. The stuff was SHITE! I mean, it wasn't properly spicy or even fishy, it tasted like wee when you drink way too much water and it's a real pale color. We escaped that one, but then went to a cafe where they served Beignets. They are little crispy buggers that are fried and served with so much powdered sugar that if you eat one you look suspiciously like a crack addict. There were pigeons all around, and one of them swooped down and started attacking my bready sweet. It (As a foul winged denizen of Stan ;) ) decided to puke on the damn thing. Me, astoundingly hung over after drinking my way across Burbon street, decided to eat it. That was the worst case of the trots ever.
(ZooLurker is an angry chick with a mullet!, Mon 12 Jul 2004, 22:38, Reply)

whitebait
'nuf said, surely?

And Quorn - christ on a bike NO!
(sheppos, Mon 12 Jul 2004, 22:31, Reply)

Every time I've eaten an olive
I have spat bits of it everywhere. I should have taken a hint and not eaten them again, right? But what should I try at a party? Yup. Fucking olives. With stones in.

I swallowed one of the stones and bits of olive peel were coming out of my braces for DAYS. So not only did I choke on food I hated, I had it in my mouth for about four days.

I have never been to Greece and I never want to.
( Reid got it going on like Donkey Kong, Mon 12 Jul 2004, 22:12, Reply)

Aspic
How can anyone eat this cat-food shite? and enjoy it?!.......
(Ghost Batty Rider, Mon 12 Jul 2004, 21:52, Reply)

I hate BEANS!
Beans are mushy and disgusting. Other gross foods are liver which tastes like slimy vomit and McDonalds which isn't technically food but for some reason people eat it anyway.
( themaltesebippy uses a sonic screwdriver to remove unsightly hairs, Mon 12 Jul 2004, 21:49, Reply)

ketchup and mash
or ketchup and salt and vinegar crisps
or marmite sandwiches dunked in coke

All of which i will sit in horror and watch my little sister eat happily
( Yeknom. Incontinence and Premature ejaculation? Easy come, easy go., Mon 12 Jul 2004, 21:41, Reply)