Jumped-up

Full definition of jumped-up

Adjective

1. (idiomatic, pejorative) Describes a person who thinks or acts as if he/she is superior in some way that the speaker disagrees with. For instance, pretending to be of a higher class or having greater authority than he/she has in reality.2007, Nov 27. Scott Murray, writing in Guardian Unlimited. Stuttgart 3-2 Rangers
• We're doomed if this wee jumped-up monkey gets Gordon Smith's blessing.