When you have something in your mouth and even if your nose is closed you still can taste the smell. (I.e gases)
Example: “yo bro when I put this martini in my mouth and close my nose I can taste the mouth aromas.”
When you burn your mouth from eating a freshly picked burrito from the burrito garden.
The burritos finally ripened and I couldn't resist biting one right when I picked it and now I have burrito mouth!
someone who dishes out all your dirty laundry (secrets) even to your parents
person a: yo did you hear that she lost her virginity last night
person b: why do you have to be such a hamper mouth?
When you want a dick inside your mouth. You crave something phallic inside your mouth.
He lowered her horny mouth onto his dick.
She longer for his dick inside her horny mouth.
When you throw scalding coffee on someone's bare ass and immediately try to lick it off
John: Did you hear what Gregg did to Mandy after work last night?
Cheri: What pray tell?
John: The ol' Mouth Vesuvius. But he buried his face so fast and deep that he had to go to the E.R. 3rd degree burns - may be permanently scarred!
Cheri: How dreadful. Say no more.
Alternatively known as "Hangover Maaaaf." A sickly after-taste in one's mouth, following a heavy night out, mixed with the feeling of fur and regret. One would feel like one has moss growing on the south side of one's teeth. Commonly suffered by Essex girls.
In context: "'ave you got any sweets? coz I got hangover maaaf innit(hangover mouth)"
When referring to wideneck mouth, this describes the unbelievable large sized, lengthy area inside of the mouth, where the penis has its designation spot. Having a wideneck mouth is one that men typically find attractive, due to the fact that their penis may fit inside the mouth with no problems.
After I faced fucked my bitch Sophia is when I truly realized how much of a wideneck mouth she had! My erect penis was easily able to fit inside that cunt's face.