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sad sack

noun

Simple Definition of sad sack

  • : a person who is not successful or able to do things well : an inept person who causes feelings of pity or disgust in other people

Source: Merriam-Webster's Learner's Dictionary

Full Definition of sad sack

  1. :  an inept person; especially :  an inept soldier

sad–sack

adjective

1943

First Known Use of sad sack

1943


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different from the usual or normal

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