In the escort/service provider industry, DT is a commonly known as: Deep Throat. During felatio (blow job), deep throat is the act of taking the penis into the mouth as deep as you can go by attempting to bypass the gag reflex and into the throat
Downtown. A mostly central urban area where one can find many bars, restaurants, and entertainment establishments.
DT by Ross Fargo December 8, 2006
Popular term particular to the area of Staten Island, New York and pretty much exclusively Staten Island, New York. Meaning undercover detective or unmarked police vehicle.