T.S.D. Share definition Flag Totally Sweet Dudes- guys that put a lot of product in their hair, like to wear muscle shirts & drink protein shakes; they often drive a Honda or Mistubishi with a mod kit on it. The T.S.D.s are all hanging out at the 7-11, revving their engines. T.S.D. by Publius October 1, 2005 0 0 Get merch Get the T.S.D. mug. Buy Now — $32.95 See more merch