someone who gets their panties in a wad a lot over nothing, or enjoys getting other peoples panties in a wad. this is, of course, metaphorical, and not literal.

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.

someone who gets their panties in a wad a lot over nothing, or someone who gets someone else's panties in a wad over nothing.