D.T.D.D.
Down to double dick: A girl who's always up for getting fucked by two guys at the same time. People say it when they think she's a total sl*t and likes getting trampled by a cock squad.
Hey, are you D. T. D. D. or just a regular tramp?
Why are you always D. T. D. D. when we go out?
You said you were D. T. D. D. but you only took one guy.