boy: Who is that girl?
boy 2: that's my duckoff.
boy: Where are you going man?
boy 2: I'm bouts to go duckoff.
Some may be considered 'sluts' while others are average girls. Only about half of them actually know that they are duck offs.
Jordan: No way, she's just his duck off.
Sam: Well I can't say much, I've been the duck off before.
Jordan: Me too girl.