fart sack

Proposed by a contributor, not yet supported by evidence.

Sense 1

Meaning · English

A sleeping bag (especially a heavily-insulated bag).

Register: slang, vulgar

Where it’s used: Used American English

Examples

Don't forget your fart sack!

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Sense 2

Meaning · English

bed.

Register: slang

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Common questions

What does “fart sack” mean?

A sleeping bag (especially a heavily-insulated bag).

Is “fart sack” formal or informal?

fart sack is generally slang, vulgar.