mostly used by women to refer to a casual
sexual partner they can call up for a booty call any time, regardless of her
relationship status.
It's no-strings, no-emotions, hardcore sex-only.
Men often use the term fuck buddy for the same thing.
A more gender neutral term might be
friends with benefits
Karen: "Damn, another lousy
boyfriend history, I think I need to call my recyclable, Rico, to get myself
grounded before hunting up a new
boyfriend.