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rude slang A bed. I don't need anything fancy—any old fart sack will do for the night.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
n. one’s bed. (Military. Apparently a place where one can break wind at will. Usually objectionable.) Come on! Get out of the fart sack and get moving!
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.