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function: noun

some sort of temporary tattoo given while asleep. Usually given by the dumbass friend who was bored and had either a Sharpie or a black ink pen. The face is usually the best place to lay some awesome Sleep Ink.
Carlos: Dude, why do you have a vagina drawn on your chin???

Ronnie: WTF???

Ceasar: lmao!!! Like, that took an hour to draw!!!

Ronnie: *Strangles Ceasar to death*

Carlos: Careful, Dude. you don't wanna mess up your Sleep Ink!!!
by Sir Roland March 17, 2010
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