When a Latino man straps a razor blade to then end of his penis and then proceeds to slap you across the face with it until both sides of your mouth are cut to look like the Joker from Batman.

According to HOMOPHOBIC BATMAN on youtube.

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.