knucklehead

American  

[nuhk-uhl-hed] / ˈnʌk əlˌhɛd /

noun

Informal.

1. a stupid, bumbling, inept person.

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knucklehead British  

/ ˈnʌkəlˌhɛd /

noun

1. informal fool; idiot

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Other Word Forms

• knuckleheaded adjective

Etymology

Origin of knucklehead

First recorded in 1940–45; knuckle + head

Explanation

A knucklehead is someone who is a dunce or does something foolish. You might criticize your friend's baking skills by saying, "You used salt instead of sugar, you knucklehead!" Knucklehead is an informal term that can come across as joking rather than insulting, depending how you use it. A pair of brothers might call each other knuckleheads in a fond way: "Hang on, I'm coming with you on your bike ride, you knucklehead!" The word is uniquely American, coined in the late nineteenth century, but made popular in the 1940s by an Army recruitment character known as "R. F. Knucklehead."

Example Sentences

"I will own up to being a knucklehead at times, but the folks closest to me know that I keep my word."

From BBC • Oct. 7, 2024

“I’m a knucklehead sometimes,” he said as he stumbled to explain his claim to being in Hong Kong during the Tiananmen Square massacre.

From Salon • Oct. 3, 2024

These are the same owners who signed notorious knucklehead Trevor Bauer because he agreed to a bargain deal.

From Los Angeles Times • May 18, 2023

“If Twitter becomes the go-to platform for the knucklehead brigade, advertisers will run, not walk.”

From New York Times • Oct. 28, 2022

"You ain't that fine if my knucklehead brother-in-law had to pick me up."

From "Patina" by Jason Reynolds

Related Words

• dummy