Top Definition
Literally means "You Stupid Lemon Eater." Coined by Scott Adams, who is known as the creator of Dilbert, around January 8, 2005. It is a general all purpose insult and should be used whenever you are insulting someone, because no other insult is as good.
You ruined my life, YSLE!
by jonfiredaman02 January 16, 2006
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