knucklehead

word

Definition

A silly or stupid person, usually used in a playful or friendly way rather than to truly insult someone.

Usage & Nuances

Primarily informal and playful, not harsh. Often used when someone does something silly but not harmful ("Come on, you knucklehead!"). Don’t use for serious criticism. Synonyms: "goofball", "dummy". Regional American slang.

Example Sentences

Don't be a knucklehead and forget your homework again.

basic

His sister called him a knucklehead after he dropped the cake.

basic

It's just a joke, you knucklehead!

basic

You locked your keys in the car again? What a knucklehead!

natural

Sometimes my brother acts like a total knucklehead, but I still love him.

natural

Only a knucklehead would try to fix the TV with a hammer.

natural