Top Definition
Theorem stating that there is some truth to every "j/k."

Every time somebody claims to be joking, one knows that part (if not all) of what they say is actually true.
(the Absolute Theorem of J/K in practice)

Person 1: Hey, man. what are you doing?

Person 2: Talking crap about you to other people and being the most hypocritical friend in the world. j/k. Not much.
by reinix March 20, 2009

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