When a dude rubs his hand(s) on his sweaty ball sac, aproaches someone from behind, and proceeds to wipe the tangy nutjuice all over the unsuspecting face.
Asshole 1: Is it humid, or is it just me?
Asshole 2: No dude, thats a Greasy Ski-mask!
Asshole 2: Fuck you.
by Billy Buttcrack July 28, 2011
Top Definition
When a man has sweaty testicles, he wipes the sweat off and rubs it on a woman's face.
My balls were so sweaty that night so I gave my ho a greasy ski mask.
by I_Wish August 03, 2009
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