1. an onomatopoeic word for an airy release of gas from the sphincter that creates the sound 'wuffffff'. Very often has a more potent smell than other variations of anal gas, perhaps due to the presence of an imminent poo poo.
Derives from onomatopoeic development of the word guff.
"whoah man, that was one helluva wuff"
"That fart was so wuffy, i think i'm going to cry"