"A word that is most commonly used in any sort of only messenger to express frustration, excitement, confusion, anger, happiness, ect. It comes from hitting many keys at once in a fit of emotion, and a, s, d, and f are all next to each other. Usually the meaning is only identifiable thanks to context clues. It is also sometimes followed by random arrangements of letters that are spammed as quickly as possible into the conversation.
xXxebilt0astirxXx: Dude, I ran over a dog eariler.
xXxebilt0astirxXx: I know."
Defenition from the Urban Dictionary.