Most commonly used to refer to a Dick-Tease. A dick tease is a female who likes to initiate sexual arousal up to kissing and foreplay, but then immediately shuts down and leaves, leaving their male partner aroused and a bit pissed off from the lack of real action.
1. Man i tried 4 times, she aint nothin but a D.T.
2. Baby come back! Dont be a D.T.!
3. Man all the girls in this hood aint nothin but D.T.'s