To eat a girl's pussy when she's having her period. Inspired by the poorly conceived, but hugely successful phenom of a recycled vampire series called Twilight.
David: "Yo, that chick has a V that won't quit!"
Dean: "Dude, I heard she's having her period."
David: "Man, I don't give a fuck I'll go twilight on that shit."

Shauna: "Gurl how was your date last night?"
Jenna: "I'm tellin' you I was riding the cotton pony but he went straight twilight on my pussy!"
by whyte chocolate April 25, 2010
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