be not up to much

be not up to much

To be disappointing or of low-quality. I gave you a failing grade because your paper wasn't up to much, and I know you can do better.
See also: much, not, up
Farlex Dictionary of Idioms.
See also:
  • not up to much
  • ink slinger
  • ink-slinger
  • torpedo juice
  • pink slime
  • slime
  • all is not lost
  • up to grade
  • a miss is as good as a mile
  • grade down