ass fumes 

When you make a silent fart, sometimes, there will be a lingering smell. It will not go away quickly like a normal fart. It can smell like gas from the stove or it can smell like popcorn. Smells like it would be dangerous to light a match.

Is possible to occur after a loud, audible fart.

Oh, goddamn! Whoever farted released some gas-smelling ass fumes...

ass fumes by Wasabimoto June 18, 2008

Vile ass fume

A toxic pungent fume ejected from the anal orifice

Man 1: What floats, smells like poo and is coming at you?
Man 2: what?
Man 1: A vile ass fume - *PRRRUT*

Vile ass fume by Thefume1010 April 21, 2019

Assfumes 

when the person opinion/taste is totally Trash you call him and Assfumes and if they say what,pretend that you din't know at all.

it's also can be use as an insult as well.

eggnog: *shares his shitty opinion*

everyone: *doesn't agree with his choices/opinion *

circ: nogami being a Assfumes} man,stick tag hashtag on his back so everyone know he an assfumes.

Assfumes by Dick Harley November 16, 2018