A dirty toothbrush is when a woman shits on her sex partners dick and he puts it in her mouth and rubs it just on her teeth.
by urbansexman August 22, 2009
Heard it on the daily show, and decided to come up with a definition for it. A dirty toothbrush is when a man has anal sex with his partner and then takes his penis and rubs it on his partners teeth.
by Yatin Shastri April 30, 2008
A lesbian dick suck.
After the softball game, I met the coach behind the dugout and was looking to get a dirty toothbrush
by Billy Barnes February 08, 2019
The act in which a man puts a vibrating toothbrush up his partners ass and proceeds to brush his teeth with it.
by icweiner October 31, 2008