A slut, a whore, in the truest fashion.
Not that run-of-the-mill whalley slut, but a slut with the soul intent of being slut, and nothing else.

These sluts are rare.

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.

A slutz0r is the local bike, the dirty bird, the slapper, the local cum bucket.