Top Definition
Pronounced "Coh-yoh"
Idiom for the spanish word "Coño" (from latin cunnus) meaning "Fuck!" or "Aght" or other expressions. Literally meaning the external part of the vagina.
"OMG!! That's not fair! Coio!"

"I'm not gay! Coio!"
by Souji January 22, 2006
7 Words related to Coio

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