Somewhat like one of the definitions of the houdini where you have sex with a chick doggy style in front of a window, pull out, and switch with a friend which then you go outside and wave to her through the window.

Except in this case you switch with several of your friends and see how many you can switch with before she notices.

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.