Slang definitions & phrases for can't punch one's way out of a paper bag
can't fight one's way out of a paper bag
To be a very weak or ineffective puncher; put up a poor showing (1940s+ Prizefight)
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D. Copyright (C) 2007 by HarperCollins Publishers. Cite This Source
Idioms and Phrases with can't punch one's way out of a paper bag
can't punch one's way out of a paper bag
Be inept, as in Ask him to program the VCR? He can't punch his way out of a paper bag. This hyperbolic term for extreme ineptitude originally was an expression of contempt for a weak or cowardly boxer.
[ ; c. 1910