when you hold a fart in for so long, it goes back up your intestines, all the way up to your mouth, and your breath starts to smell like that fart

Really bad smelling breath.
See morning breath.

Shitty stench that eminates from one's mouth; Ba Ba Booey's breath.

when lyndsay has one of her uncontollable outbursts and rips a huge fart with poop involved. She loves poop

A situation that exists when jordan saunders forgets to brush his teeth.

Breath that smells so bad, you think someone farted in that persons mouth, then might have actualy taken a shit in it too.