When a girl is being bitchy or acting as if she's god's gift to humanity.

Loosely based on one of J.K Rowling's character from Harry Potter, Pansy Parkinson... yes, the biatch of the book (Apart from Lavender...)

Adj. Something that is expected to have a long lifespan by virtue of having existed for a long time, based on the lindy effect, named for the New York restaurant Lindy's, coined by Albert Goldman and popularized by Nassim Taleb.