a conker-sized wad of clean toilet tissue that's been soaked under a cold tap and then, while soggy, thrown at somone, usually from above (i.e. by leaning over the partition between two toilets in a public lav).

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.