Crypt-keeper

(Noun) - A sexually-aggressive older woman (see "cougar and MILF"), now past the point of potential attractiveness/interest from her own potential conquests; usually identified by rail-thin body, over-exposing tight clothing, a cloud of expensive perfume (presumably to mask the odor of decay), tight facial skin that favors stretched plastic wrap, unblinking reptile-like eyes, and makeup that looks like it was applied by a Hollywood special-effects artist. This reference is also due to the creature's innate horror-film-like ability to appear attractive from the rear, yet upon turning around they will immediately startle the other person; crypt-keepers are commonly known to be able to frighten small dogs and can cause babies to burst into tears.