In the Nordic highlands, it was widely though to be rude when prince's of lords would pick their teeth with their fingers in a jerking motion, while speaking ill of their house.
This custom was adopted by the Europeans in the 1600's
When your son is mouthing off, when he should be zipin' the lip. He's being a mouth jerk
When you have horrible cotton mouth.
I need water I have horrible cloud mouth.
Da drawn-for-comedic-effect "squiggly-lips-line" facial expression dat a cartoonist employs to indicate a confused, shocked, or distressed mindset of da character displaying said weird look.
Sarge: Look at all these awful news-items in the newspaper --- fire, floods, famine, you name it! I wish I could hear even one little piece of actual GOOD news for a change!
Zero (in naive cheerfulness): My sore toe is better!
Sarge: (glances up at Zero with his classic "wavy-mouth" expression)
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
What your sweet mother might tell you when you say some no no words.
Ex:
Nathan: These stupid-ass bitches
Mamma: Nathan! What a pottie mouth!
When you put the crack in ya mouth while its still cookin.
Damnnnnn shawty a whole pyrex mouth.