From Longman Dictionary of Contemporary Englishgunnysackgun‧ny‧sack /ˈɡʌnisæk/ noun [countable] American English DTAa large bag made from rough material and used for storing grain, coal, potatoes etc
Examples from the Corpus
gunnysack• I expect with the Depression on like it is, a gunnysack would get you one now.Origin gunnysack (1800-1900) gunny type of rough cloth ((18-20 centuries)) (from Hindi gani) + sack 