stick up (one's) ass

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stick up (one's) ass

rude slang A rigid and uptight demeanor. I can't believe Ms. Jones gave me a demerit for being a minute late! Ugh, she has such a stick up her ass! Tim's no fun, he always has a stick up his ass—why did you invite him to your party?
See also: ass, stick, up
Farlex Dictionary of Idioms.
See also:
  • can't be doing with (something)
  • can't be doing with something
  • a fire extinguisher
  • can't do something to save your life
  • can't (do something) to save (one's) life
  • be a drag on (one)
  • butt-wipe
  • Blame Canada!