to unwillingly insert as much of your foot into your partners mouth during hot booty sex
Craig, get you smelly, cheesy, son of a bitch of a foot out of my mouth mumbles natalie with a mouth full of foot
1.(noun): One who often says the wrong thing.
2.(adjective): A moment one may have when they say something akward/inappropriate.
1. Bill is such a foot mouth; he told Sally to "tough it out" when her boyfriend broke up with her.
2. Bill had a foot mouth moment yesterday when he asked his algebra teacher for a lap dance.