1)Oral sex.

2)A positive outweighing possible negative personality traits of a potential female sexual partner, eg "She can't be annoying with a mouthful of coq!".

3) The punchline to the joke "What do you call nuts on your chest? Chestnuts. What do you call nuts on a wall? Walnuts. What do you call nuts on your chin?"

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.