Definitions by mike iz cool

DTM 

Don't talk, mom
means that your parent(s) is/are around and you're talking about
-drugs
-sex
-how gay your parents are
and you dont want your parents to read

person 1: hey dude have you smoked that purple i gave you???
person 2: DTM
person 1 shuts up

DTM by mike iz cool August 10, 2008