an act caused by a female's brain being on a multitasking overload and gets severly confused, incorrect messages are sent through the body, and causes the female to shit out of her vagina.
Person 1: Dude, I heard that Kelly layed down a brunt in physics yesterday
Person 2: NO WAY, how do you guys know it was a brunt?!
Person 1: dude she was freaking out and screaming WHAT JUST CAME OUT OF MY VAGINA OMG, then John stood up and screamed EW, KELLY BRUNTED, and she ran out of the class crying.
The unfortunate condition where a woman's vagina starts to spread in a most unusual way, stopping only when it has absorbed the tits. The word is derived from the words breast and cunt.