To go greek is to be a willing recipient of anal sex; this phrase usually refers to the first time this occurs, but can be applied to a veteran too. The 'g' in greek can be capitalized, but it doesn't change the meaning. This slang originates on the US east coast, but hilarious misuse of it pops up at universities all over the country during fraternity and sorority rush weeks, since a lot of them make signs and banners saying 'go greek'.
My girlfriend finally decided to go greek.

Did you know that Josie goes greek?
by Steve Lackey August 30, 2006
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to fuck a girl or guy in the ass using olive oil for lube
The chick wanted me to go greek on her ass, so I did and it was awesone.
by Greek Ass Raper July 13, 2005
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Much like the common term "Going Dutch", Going Greek differs in that the person who has arranged the date pays nothing. Rather than splitting the cost of the meal, the invitee pays for the entire check.

After having done so, the person who pays nothing will still expect the date to progress to an intimate coupling without any concern for the feelings of the invitee.
A Good Example is the The Greece-Europe Bailout of 2010

Also:

"Hey, Do you mind covering this?"

"What? I thought we were going Dutch!"

"Yeah, uh... I'm kinda broke right now..."

"You have got to be kidding!"

"Well... uh... I'm sorry, really... but... afterward we could still go back to my place...."

"I would never agree to going Greek with you!"
by Spiffy McFly May 12, 2010
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When you date a Greek guy/girl and it ends, you still want them even though its over because you cannot resist their Greek charm or their big Greek dick (BGD)
Person 1: "Jennifer can't get over that Greek guy she was with"
Person 2: "Yeah I know, once you go Greek, that's all you seek"
by Bambos The Greek April 25, 2022
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