An acronym for "Don't Do Dumb-Ass
Shit." Often jokingly used in place of the similar but rather
boring DDAS, for "Don't Do
Anything Stupid."
First
Guy: Hey, I just found out you can use hairspray as a flamethrower! I gotta try this!
Second
Guy: Bro, DDDAS.
First
Guy: What does that stand for? Don't Do Anything Stupid?
Second Guy: Uhh, yeah, that's totally what it means... *eyeroll*