A or type mouth that smells of what is known as, ass. Butt Mouth can most certainly be a way of describing an animal, such as a dachshund, who by any means, licks its own ass hole, therefore giving off a disturbingly disgusting smelly breath which is best described as, butt.
when you accidentally bite your gum and it swells and since its swollen there's a higher chance of biting it and then you do bite it and then the mouth butt is even bigger and so on
Where a man has anal and then immediately after has a blowjob. Typically used in porn for the kinky horndogs. Fuckin’ yucky
Person 1: yo my girl agreed to do butt to mouth last night.
Person 2: how did she say it tasted?
Person 1: like shit and she hated it but dude i nut so hard
Person 2: nioce
The state of having one's mouth smell, taste, and/or otherwise resemble the odorous qualities of a humananus. A colloquialism, does not require literal direct contact between the mouth and an anus.
(discussing timeline for leaving the house and the necessity to finish grooming first)
PERSON 1: Grooming is for squares. Let all the hairs grow an all the scents bring forth suffering to those within proximity.
PERSON 2: Ugh. I am not gonna go sit in a hot stuffy network closet with buttmouth. If nothing else I still have to smell it myself.