When you are fucking a girl doggie-style and her back is hunched over.

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.

When a woman has a very masculine back. This disturbing and very unfeminine feature includes any or all of these features: broad shoulders, large back muscles (lats and traps), or lots of moles or freckles.