a bleff can be known as many things. it can be known as a burp, a fart, shit, pretty much anything. and it's a really funny word used by a couple of retards.
1. LARISSA JUST TOOK A HUGE BLEFF!
2. OH MY GOSH, THAT WAS SO FUNNY THAT MADE ME BLEFF!
3. WHO LEFT A HUGE BLEFF IN THE TOILET?!?