Mouth running 

Mouth running: A person talking shit.

Sisters friend: Bakla. Bakla Bakla ka. Bakla ako. Bobo mo. Bobo mo. Bakla ka. Mali it titi mo! chinuchupa! Chinuchupa! Ah ahh..chinupa!

Brother: Here we go again. "Mouth running "... shut your ugly ass up...

Mouth running by mali it titi mo September 13, 2017

He was running his mouth, wasn’t he!!!!!!! 

He was running his mouth, wasn’t he!!!!!!! — The epitaph of any dead snitch that thought that the witness protection program would keep him safe.

A member of the community standing over a bullet riddled body with a rat in each hand and one shoved in its mouth:

“ He was running his mouth, wasn’t he!!!!!!!”

He was running his mouth, wasn’t he!!!!!!! by Mind Hunter the Profiler March 9, 2023

running your mouth

to keep on talking on a subject that is causing distress to others and provoking a fight

If you keep running your mouth, you are going to cause a big fight!

running your mouth by Pino Citron January 17, 2008

running your mouth

talking shit, stirring shit, letting your mouth run off without thinking.

"Stop running your mouth like a bitch!"
"Dave has been running his mouth about me to everyone."
"ZOMG STFU NUBBIE DNT RUN YUR MOUF AT MEH!!1!11111"

running your mouth by crazfulla October 17, 2006

Running your mouth

Running your mouth mean when you keep talking crap continuously.

Stop running your mouth before you start a fight idiot.

Running your mouth by Aestheticxlly_0 October 19, 2018

running your mouth

saying smart ass things and generally bitching at a fast pace. Yelling out paragraphs of bitchyness really quickly. Blabbing nonsensical things in an argument just to take up time and have your voice heard.
(the running part means that is is done at a fast pace or else it would be called "walking your mouth")

"they were in a rational argument and she said something that offended him, so he started running his mouth to show his disaproval"

EX.

Him: hey, Jessica
Her: My name isn't fucking Jessica
Him: fuck, fuck, fuck, man, fuck, just fuck it man, fuck, fuck, fuck
Her: What the hell is wrong with you!?
Him: you need to stop running your mouth.
Her: Uh, I'm pretty sure it's you who is running their mouth.

running your mouth by narcobitchleptic October 27, 2011

running ya mouth 

When you keep talking in a situation where it is best for you to be quiet. Basically, not knowing when the shut the fuck up.

Keep running ya mouth about the game you won 5 years ago and I'ma smash ya face in the yard.

running ya mouth by Keith Wigger the NIGGER April 27, 2008