Dick Togs. A form of swimming underwear, used mainly for sporting reasons or by really old seedy men at the beach.
Guy: "Man, those old guys wearing DT's should be arrested for indecent exposure"
by Menztrual September 17, 2011
1) Short for Dream Theater
2) 4th and 20th letter of alphabet

Both are linked
Coincidentally, Mike Portnoy (DT's drummer)'s birthday is April 20th (4/20). Looks like the band name fits with the frontman ;)
by NoWarranty August 3, 2009
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.
"Don't smoke that blunt in the street. Mad DT's be running around and sheet."
by Big RyRy March 30, 2005
Down To Snuggle. Its basically the same as DTF but sounds less sexual. Usually used as a opening to get a girl or boy in bed, so more than snuggling can happen.
by Senior Cuervo January 11, 2011
Dark Templar, a unit in Star Craft, permanently invisible (unless detected with a spell or special unit) and deadly in hand to hand battles. Merges into Dark Archons.
Crap! He's sending DT's into my base! Somebody send in detection!
by Zhipov October 28, 2003