In Colonial times, it wasn't considered gay if a man was a top in sexual intercourse between two men. This was regarded as a normal, heterosexual act.

But The Reverse Colonial refers to a man being on bottom in sexual intercourse between two men and him (and possibly only him) not considering it to be anything but heterosexual.

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.