jumped-up

American  

[juhmpt-uhp] / ˈdʒʌmptˈʌp /

adjective

Chiefly British.

1. having recently gained prominence or fame and appearing arrogant.

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jumped-up British  

adjective

1. informal suddenly risen in significance, esp when appearing arrogant

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Etymology

Origin of jumped-up

First recorded in 1825–35

Example Sentences

Those doofuses on YouTube, spinning out in their jumped-up Ford Mustangs?

From The Wall Street Journal

Regular soldiers looked down on General Hamdan and his paramilitaries as a motley crew — “a bunch of jumped-up yahoos from the sticks, not proper military men,” as one Western ambassador put it.

From New York Times

He loathes these new “jumped-up bookshops that masquerade as art galleries with nice little walnut tables.”

From New York Times

When associates of a leading minister refer to you as “that jumped-up oik”, you may sense you’re not winning friends in high places.

From The Guardian

The guys animate their answers with fist pumping and jumped-up bro hugs and take-thats and all manner of behaviors that make it seem like we’re participating in football practice and not a dry Quiz Bowl.

From Literature