fart sac 

The place inside the anus where your excess farts are stored for later in use during the day.

Kyle was storing his farts in his fart sac, then Marc punched him in the stomach and Kyle proceeded to fart, releasing all the farts from his fart sac that he stored.

fart sac by FART MAN October 7, 2013

fart sack 

Commonly known as a sleeping bag.

"Don't forget your fart sack!"

fart sack by Helen Robinson January 25, 2006

fart-sack 

sleeping bag

the good fart-sack is mine,you can have the world war one vintage bag its bear proof.

fart-sack by dang May 8, 2003

fart-sack 

A sleeping bag.

By extension, a bed.

Man, I'm going to hit the fart-sack. See in in the morning.

fart-sack by Bumkicker Slade April 24, 2005

Fart sack 

A slang term describing a bed

I’m so tied, I need to hi the fart sack

Fart sack by Sophdog5 May 9, 2018

Fart Sack 

The bed/couch/etc. where you have been sleeping, lounging, eating, playing video games, watching t.v. etc. for more than a couple of days in a row, without showering or going out. You only get up to use the restroom, get something to eat/drink and then flop back down. This type of situation usually means that there is a definate funk surrounding you that smells something like a fart.

Yo Man, roll outta that fart sack and lets go get some grub!! Shheeeeiit, you been layin up in this fart sack for the past WEEK!!! C'mon, lets roll.

Fart Sack by Booootttyyy-licious February 3, 2010

fart sack 

The cover sheet on your mattress.

When doing the laudry today, don't forget to wash the fart sack.

fart sack by victorzulu November 29, 2010