jumped-up

Related to jumped-up: jumped ship

jumped-up

slang Glorified. The phrase is used to describe someone who acts or is thought to be more important or powerful than they really are. Primarily heard in UK. I can't believe she's trying to tell me what to do, when she's just a jumped-up intern! These days, it feels like the prime minister is nothing more than a jumped-up headmaster.
Farlex Dictionary of Idioms.
See also:
  • eggs is eggs
  • kicking and screaming
  • great minds
  • great minds think alike
  • (as) sure as eggs (is eggs)
  • sure as eggs is eggs
  • from my cold, dead hands
  • 57
  • Heinz 57 (variety)
  • Heinz 57 variety