Diarrhea of the Mouth 

A person, who usually isn't very intelligent, who will not shut up. It's typically a cover for their own inferiority.

Damn, shut the hell up dude. You sound like Dabo Swinney with all that diarrhea of the mouth!

Diarrhea of the Mouth by C-dog73 December 18, 2012

You breed with the mouth of a goat 

You talk dirty when you have sex.

Originates from the idea of goats whispering lewd things in young women and old men's ears.

Castiel: You breed with the mouth of a goat!
One of the Winchesters: Wut?
Castiel: It's funnier in Enochian.

You breed with the mouth of a goat by Drokhan May 8, 2014

dont look a gift horse in the mouth

meaning if something is free dont find the flaws in it.

one way to tell a horses age is by looking at the wear on his teeth , if someone gives you a horse theres a good chance it is old and you wont get much use out of it.

sam got a bike for christmas , but it wasnt the one he asked for .... "dont look a gift horse in the mouth"

dont look a gift horse in the mouth by the_colt23 May 12, 2011

both sides of the mouth 

1.When a person says things they really don't mean.

2.To not own what one says.

3.two faced

"It became hard for Micheal to take Melanie seriously. She talks from both sides of the mouth."

both sides of the mouth by sauerpower June 11, 2006

Boner in the Mouth 

Something that is indescribably delicious

This asphalt pie is like a boner in the mouth!

Boner in the Mouth by Shizbonerz November 16, 2011

bust it in the mouth 

when receiving a blowjob and you ejaculate (cum) in her mouth
Past tense: busted it in the mouth
Also: bust it in her* mouth

Guy 1: I like to cum on the chick's boobs
Guy 2: really? I like to bust it in the mouth

Girl 1: Do you think you're pregnant?
Girl 2: No he busted it in the mouth

bust it in the mouth by sexluvr1 September 16, 2014

buttfucked in the mouth 

Being absolutely dominated.

Unfortunately, Ohio State got buttfucked in the mouth by USC.

buttfucked in the mouth by 88BuckeyeGrad February 21, 2009