Top Definition
That which you do things for. Theoretically, the lulz can consist of anything that could potentially cause any person or group to burst out in extreme fits of the giggle-snorts. Lulz, being a corruption of the acronym "lol," can also be used as an exclamation of joy gained from a particularly hilarious situation.
Doug: Hey, Alex, why do you have to slam my locker shut every day?
Alex: I do it for the lulz.

Doug: Hey guys that douchebag just got punched in the face by an old lady.
Josiah: Oh my god, that's pure lulz.

Doug: FUCK!
Teacher: Doug, you have detention at three after school.
Josh: Lulz!
by LeagueOfLulz January 12, 2011

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