Brainmouth 

A condition found in animals from the planet earth(primarily humans)in which the animal loses the ability to NOT speak every single word they are thinking. The verbal words are spoken about 1/trillionth of a second (actually faster than the speed of light) after the thought of the words in the brain itself.

Dad walking down street with 3 year old daughter bump into an extremely overweight acquaintance of dad's.

Dad:"Hi Lyndon."
Lyndon: "Hi Chuck."
Gracie(3-year-old daughter poking finger into Lyndon's large soft belly):"Mr. YOU have a FAT tummy!"

Gracie would at least momentarily be experiencing "Brainmouth".

Brainmouth by Squarezup November 3, 2008

braindouching

Not too unlike brainwashing, but using a stronger form of brainwashing.

{Near-present tense} to braindouche
{Past tense} having been braindouched

Rikers was subject to a technique rather historically inaccurately referred to as braindouching.

braindouching by Telephony September 4, 2013

Braindouchery 

The act of observing something so horrific or stupid, the only possible way to stop seeing it is to put a douche in your ear and squeeze.

The way your brother tried to masturbate with a razor is braindouchery.

Braindouchery by Azekual009 January 7, 2011

bragmouth 

Means whatever you want it to. Can be used endearingly, or as an insult depending on context.

"Get out of my way you fucking bragmouth!"
or
"What's up bragmouth? I haven't seen you in forever"

bragmouth by annabelle lee December 26, 2006

brainout

Someone with no brains (nothing upstairs).

That bitch is brainout! Good thing shes got that body 'cause her head is empty.

brainout by SpornStar December 9, 2007

Brain mouth

Unfiltered filth, unfiltered speech

The girl has no filter when she drinks, her speech is brain mouth.

Brain mouth by bykc November 26, 2018

brownmouth 

Allowing a female to perform oral sex after an extended act of anal sex. Ideally, this female will have a little brown lipstick as a reminder.

That bitch was scandalous, so gave her a lot of brownmouth.

brownmouth by BTA December 27, 2007