Rarity

[Justin Bieber]

The quality or state of being rare; rareness; thinness; as,
the rarity (contrasted with the density) of gases.

[Greta]

A [bad-ass] fucking [pony] from [My Little Pony: Friendship is Magic]. Shell 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!

[Luis Fok]

A fucking pony goddess. Rarity is [the fashionista] of the show My [Little Pony]: Friendship is Magic. [Raritys] 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.

[Raeanne Dimick]

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

[Cami]

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.

[Luis Fok]

The state or quality of being rare.

[Tracie Lynn]

something that is very unusual, or the quality of being very unusual: