There have been a few...
Examples of the 'mouth poo' style of vomit already mentioned so far. I too have experienced this phenomena first hand and whilst my story isn't as horrifying as some of those, it nonetheless was a disturbing and frightening experience and one that needs to be relayed.
A few years back my Friday night routine would be as follows; Finish work, Triple S (Shit, Shower, Shave), pub, club, kebab/pizza, friends house, pass out. A very familiar sounding routine to very many people.
Well on this one occasion nothing untoward had happened, the drink consumed wasn't excessive and no dodgy food had been consumed, apart from the kebab it would seem. On this night out I decided to go home instead of stay at a friends and it turned out to be quite a sensible decision. Got home feeling alright, drank a glass of water, brushed teeth and went to bed. Awoke some hours later with the slow grumbling in my stomach. I ignored it at first but soon came to realise that I may need to be in the vicinity of some sort of receptacle pretty soon, so off to the bathroom.
There I stood, arms outstretched, head down, holding on to the sink not sure if i really needed to purge my dinner or not when I involuntarily drew in a massive amount of breath, just as well or I might be dead now, then it came. The longest, slowest, most excruciating wretch ever. I could feel the pressure building up in my eyes and the blood rushing to my head as a lump of matter slowly made its way up my oesophagus. I was making sounds like Arnie in Total Recall when he gets sucked out of the dome in to the atmosphere free wastes of Mars, but while being choked at the same time.
What the fuck? Why was it taking so long to come? My vision was starting to black out and my grip on the sink loosening by the time the monstrosity slowly filled my gob and flopped out of my mouth making a sickening splat sound as I gasped for air.
The kebab I had consumed earlier had not been digested at all really and resembled a large bowl full of 2 day old dried porridge. With hindsight it would have been easier to pick it up and put it in the bin but instead I chose to try and rinse it away. Didn't make a good job of it in the state I was in and the sink never did drain properly ever again. I was just glad to survive the ordeal and can comiserate with others who have found themselves suffering from this gastric gaffe. Didn't touch kebabs for a while after that either.

On a different story, the new years just gone I vomited in my girlfriends hair whilst asleep and spooning her. She was not impressed...
(Megamoss, Sat 9 Jan 2010, 3:39, Reply)