Menstrual mouth 

Performing oral sex on a girl who is having her period menstruating.

A guy and a gal kiss after he performs oral sex on her during her period.
After they kiss, the gal says, " Go brush your teeth, your have menstrual mouth"

Menstrual mouth by olive man November 22, 2014

Sugar mouth

Sweet talker

Such a good sweet talker, a sugar mouth.

Sugar mouth by sskohli October 29, 2014

Red Baron Mouth 

The pain and sensitive rawness of one's mouth for a day or two, after eating a frozen pizza too quickly after leaving the oven. Leaving your mouth singed from the molten cheese and tomato sauce.

My case of Red Baron mouth made to eat anything salty the next day, I really should have waited a few more minutes to start eating that frozen pizza.

Red Baron Mouth by BayAreaNick February 24, 2010

yip yap mouth 

Someone who wont shut the fuck up, like dammit man shut your damn mouth

Justin is a yip yap mouth

yip yap mouth by Thatredneck March 31, 2015

spitty mouth 

The sensation one feels when their mouth begins to salivate and fill with spit, after having had too much to drink. This is then usually followed by vomiting, however some can fight it off. Either way, you'll be spittin'.

Bro #1: "Yo dude, take down that shot!"

Bro #2: "Can't do it man, I've got spitty mouth."

spitty mouth by Red Man July 12, 2012

Watch your mouth

this verbal warning and boundary is provided when someone takes personal offense to what someone else is saying. It is meant to urge the person to reconsider what they are saying.

The term can be followed up with an “or else” but it is usually the final warning before a consequence is given (a slap, getting blocked, etc.)

Ann: People from Chicago are lazy, stupid, and unconcerned.

Vance: Uh, I’m from Chicago.

Ann: So?

Vance: So Watch your mouth

Watch your mouth by gayandaloof July 20, 2020

Loud mouth

1.Dont know when to shut the fuck up.
2.Talks before thinking about what they are saying or why they are saying it without consideration for consequences.
3. Big mouth, loud mouth, Macho mouth.
4. Diarrhea of the mouth.
5. Talk the talk but too scared to walk the walk.

Someone who says they are great at playing pool until they get on the pool table and then can't make a ball in the hole; and have nothing but excuses afterward.

Loud mouth by WilliamFuentes.com April 20, 2005