vulgar slang Someone who very much enjoys sex and/or engages in it frequently. The term is usually intended to be derogatory or have a negative connotation. Call me a "fuck freak," I don't care—sex is great, and everyone should do it more.
n. someone who is obsessed with copulation. (Taboo. Usually objectionable.) She is a hot little fuck-freak, and she’ll wear out any dude that takes her on.