wacko

word

/ˈwækoʊ/
WA-koh
/wˈækəʊ/
WA-koh

Definition

A slang term for a person who behaves in a very strange or crazy way.

Usage & Nuances

"Wacko" is very informal and sometimes insulting; it's used more for joking or criticizing than for medical conditions. It can describe a person or their ideas, and is often used in playful teasing or to exaggerate someone's odd behavior.

Example Sentences

My neighbor is a bit of a wacko, but he's harmless.

natural

Did you see her outfit? She's a total wacko!

natural

People called him a wacko, but he turned out to be right.

natural

He acts like a wacko sometimes.

basic

That movie was totally wacko.

basic

Don't listen to his wacko ideas.

basic