Dick On Tap.
The procurement of a nonverbal agreement to have intercourse on frequent occasions over a certain amount of time. Frequent enough where said fucks cannot be defined as booty calls but aren't required to be a a confirmed relationship.
alternative uses of the phrase are "P.O.T."
Pussy On Tap or Penis on tap.
Nah dude I dont even have to shave my legs anymore, its D.O.T.