What is Brainmouth?
1.
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".
See
Random Words:
1.
when a guy/girl ask somebody to date them and they make you wanna vomit
female1: 'omg Toby that rank guy asked Brit out.'
fe..