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.