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1.
(n):
1. Week-long celebration of panhellenic fraternities and sororities at American universities and colleges. Students participate in a litany of meaningless events that the rest of the campus cares nothing about - capitulated by "skits" being preformed. Usually characterized by "frat row" or another Greek-populated area of campus resembling that of a frat boy and sorostitute minefield.
"Hey man, you hear the Sigmas are coming back!"
"No one fucking cares about Greek Week."
by Anon E. Mus April 21, 2010
 
2.
we all know the ancient Greeks liked a little anal sex here and there, so when a woman is on her period and must surrender her ass to her man for a week while the tampax are occupying the front, this is "Greek Week"
Karen picked up some K-Y at the drugstore whenever she bought tampons, because she knew Greek week was coming.
by sogroovy April 17, 2009