Cigarette filter

When one farts so much in one day (without starting) that a thin tarry film is created on ones underwear

Damn bro that Mexican food was a mistake I farted so much I got a cigarette filter

Cigarette filter

To fart so much in one day or between changing of underwear (without starting) that a thin tarry black film of shitty residue is president on ones underwear.

Damn bro that Mexican food was a mistake I got a cigarette filter

Brown filtered cigarettes

Touching the filtered end of an unlit cigarette to one's asshole and returning it to the package. Keep an extra pack of these to give to moochers or people you don't like.

Boyce always chuckled to himself as his targets placed the brown filtered cigarettes in their mouths.