Define Rarity Meaning

A girl that is both smart and hot. It is rare to find a girl like this so thus, rarity.

A bad-ass fucking pony from My Little Pony: Friendship is Magic. She'll make a dress faster than you, and whine about how you take long to do it. And laugh in your face like this. "BwaHA-HA!"

A fucking pony goddess. Rarity is the fashionista of the show 'My Little Pony: Friendship is Magic'. Rarity's element may be generosity, but that is only a short word in a long list of many. She is kind, generous, fashionable, loving, loyal, and a great singer. She lives for her friends and her fashion. In short, if you ever meet a Rarity, consider yourself lucky.

This relates to the Pony "Rarity" from the series "My Little Pony: Friendship is Magic". It is a term given to a girlfriend or ex-girlfriend when she becomes super bitchy and complains a lot.

Something so uncommon or unheard of, it's as rare as the dinosaurs.

Complete and utterly fucked.