One-Man Slut
A rare specie of woman who, although dedicated to her boyfriend, has a sex-drive fit for the average female Velociraptor during mating season. She will constantly fuck her man (usually having a massive sex drive himself) until the point of soreness for both of them. The moment the ointment takes effect, they will start fucking again. Birth control is a very important factor in a relationship with this type of woman.
"Wow... did you see the way Shauna was fucking Derek during the entire vacation? She didn't look at any other guys, either. There's only one thing that can mean..."
*dramatic pause*
"We have encountered the elusive one-man slut. "
*dramatic pause*
"We have encountered the elusive one-man slut. "