A girl (usually) that's quiet, kind hearted and will do anything for the one who has her heart. But don't take her for granted, once on her bad side she can do damage and you'll regret hurting her. Chi Ann can also be very loud at times and is a humorous girl.

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.