God, there are loads
Sometimes when talking to real people I forget you can't say the same things out loud as you can online. At least, not without them looking horrified, disgusted or faintly nauseous.
(berk, Thu 23 Dec 2010, 19:45, 3 replies, latest was 15 years ago)

Evening berk.

( JeffTheDogFucker Can you dig it?, Thu 23 Dec 2010, 19:46, Reply)

I had to stop myself from saying 'fnar'
When my cousin put as her Facebook status that her dad was sweeping her chimney. She wouldn't have appreciated it.
(BelladonnaAnodyne Melissa's gonna wet herself, I swear..., Thu 23 Dec 2010, 19:47, Reply)

If someone says what more than once
I have to stop myself from following up with "in the butt"
( willenium Fist bump for verification, Thu 23 Dec 2010, 19:49, Reply)

Ha, brilliant!

(BelladonnaAnodyne Melissa's gonna wet herself, I swear..., Thu 23 Dec 2010, 19:51, Reply)

Other sayings that have escaped into RL from me
RL
Lulz
Do not want
de RIS
Mongtarded
twunt
hamtoucher
( willenium Fist bump for verification, Thu 23 Dec 2010, 19:57, Reply)

I have been describing far too many people as 'complete belming retards' recently.

(BelladonnaAnodyne Melissa's gonna wet herself, I swear..., Thu 23 Dec 2010, 19:58, Reply)