Slang term used in Philly to describe someone younger than you. Often times implying a possessive association with a preceding "My", when referring to a sibling or younger person who admires you.
If you are a young bol, then persons older than you are referred to as ol' heads.

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.