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'.

A pick me is a woman that is willing to do anything for male approval. She will embarrass or throw other women under the bus to achieve this goal. The unfortunate thing about a pick me is usually the men they are trying to seek approval from are of poor quality and treat women badly, leaving little real benefit for the pick me.