Definitions by PMILK

Greg 

n. A guy who waits outside the bathroom waiting for drunk girls who look like theyre gonna puke so he can follow them in and put it in their butt while they're puking.

Man 1: Yo dawg, why u waitin outside the bathroom?

Man 2: I'm waitin for girls that are green in the face?

Man 1: Why?

Man 2: Shhhh. Hold on, here comes one now. This girls about to get Gregged.

Greg by PMILK February 4, 2010