Top Definition
When a dude pulls down his pants and sits on a naked girl's chest. He then proceeds to wiggle his ass so that his nuts smack between her tits.

past tense: tat sat
Nick: Guess what happened last night?
Ben: What?
Nick: Shelly let me tit sit her.
Ben: WHAT?
Nick: That's right. I tat sat a bitch
by shandman300 May 04, 2011

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