(military, slang, mildly vulgar) A sleeping bag (especially a heavily-insulated bag).
Don't forget your fart sack!
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(slang) bed.
Don't forget your fart sack!
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.