When you are so excited or so angry that you lift your hand off the shift key to early and accidentally put a "1" at the end of your numerous exclamation marks.
Mother: GET HOME NOW !!!!!!!!!!!!!!!!!!!11
Child: Ugh okay!
Jenny: I cant wait to finally have sex with him!!!!!!!!!!111111111
Dan: Um I am you ex why are you telling me this?
Common typo among people who like to insert many exclamation points to the end of a sentence, caused by accidentally releasing the Shift key before the 1 key, and sending the message without previewing it to realize the typo had been made.
Often used on purpose to make fun of such accidents and the people who make them, or as part of leetspeak.
A similar but less-joked-about occurrence is the tendency to insert backslashes after a string of question marks.
A term originally created by a sergeant with the Los Angeles Police Department SWAT Team. Designed as a reminder that in fact you only have "one ass to risk"(1 as-te-risk), so you'd better be careful.
Don't get yourself shot tonight, you only have 1* and a wholelife ahead of you.
When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).