Whenever you are on the can and grab a couple sheets of toilet paper and cup it over your butthole to filter the sounds of your erupting bowel movements.
Are your walls paper thin? Afraid your roomates or your significant other with hear your compressed explosions? Then use the fart-filter method.
by kris ault January 22, 2009
1 more definition
Noun: Underwear or panties.
I need to change my fart filter. My fart filter is dirty.
by Mike Alexander May 29, 2007