A person who has little up top mentally and very little down below physically.
Usually male.

You wouldn't touch a clumberfuck with.a bargepole. Or any other sex toy.

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.