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

Cock Shaped Mouth 

Any individual, generally female, whose mouth is shaped and designed primairly for the insertion of male genitals. The shape, size, and controlled contortions of said aperture can all lend themselves to its defining as a 'cock shaped mouth'.

"She's got a stupid cock shaped mouth on her...... I could see how it would be appealing when drunk"

"That cum dumpster has a serious cock shaped mouth"

Cock Shaped Mouth by Twanker94 May 18, 2012

from the horse's mouth 

Information from the original source

The reports read were from the horse's mouth

from the horse's mouth by Jaymore November 27, 2017

Domino's mouth 

that feeling when you've just finished a dominos and you really need to drink some water

I've got domino's mouth after eating that pizza

Domino's mouth by greg likes food November 8, 2018

Who’s in mike’s mouth

A game played while camping when your propane lantern runs out and your campsite or area is pitch black and the youngest guy is “mike” and he has to try to guess who’s in his mouth.

“Mike”: let’s play who’s in my mouth

Everyone:wait what?!
That’s how the game who’s in Mike’s mouth starts

Who’s in mike’s mouth by It’s the lesbians, run! September 7, 2020

Potty mouth 

one who uses foul language such as damn, fuck shit or shite, muther fucker, etc.

if you would like an example video tape yourself saying the above definition outloud and watch the tape. you will find that you are an excellent potty mouth

Potty mouth by EDDIE B May 31, 2004

wide mouth mayonnaise jar 

Wide mouth mayonnaise jar--The term used to describe the anus of an x-con.

The Dr. wanted to know how long I had been out when he said my asshole looked like a wide mouth mayonnaise jar!

wide mouth mayonnaise jar by vernon dutton January 21, 2004