loony tune

noun

A silly or crazy person; a person whose actions are unpredictable and irrational.

“Some loony tune parked his car in the no parking section.”

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Meanings

nounloony tune (plural loony tunes)

plural loony tunes · alternative loony toon · alternative looney toon

  1. humorousslangA silly or crazy person; a person whose actions are unpredictable and irrational.

    Some loony tune parked his car in the no parking section.

    1 more example

    Stop fooling around like a loony tune and get to work on your essay!

Synonyms & antonyms

Also see
crazocrazycrazyheadkooklunaticmadcapmadheadmadmanschizschizo

Origin

Probably after Looney Tunes cartoon characters, because these characters are noted for their silliness.

Full word history & related roots →
Cite this entry
APA

loony tune. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/loony%20tune

MLA

“loony tune.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/loony%20tune. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “loony tune,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/loony%20tune.

Source: loony tune on Wiktionary, CC BY-SA 4.0.