very secretive or hard to find

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.

Highly elusive, hard to find.
Things that get stuck in the couch, or an antelope hiding from its predator. Can be used to desribe people, things, or animals. Most often used as an adjective.