When a nerd becomes extremely excited by something nerdy

Orgin: Colbert Report 2006

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.

A literal sexual arousal induced by esoteric hobbies not appreciated by a reality loving populus.

When a nerd experiences or anticipates a certain event that is expected to have a positive effect, she or he receives a certain swelling in her or his nether region.