A playful, affectionate-to-mock variation of 'fool' with an added -io suffix that makes it sound like you're naming a cartoon character — which is sort of the point.
A playful, affectionate-to-mock variation of 'fool' with an added -io suffix that makes it sound like you're naming a cartoon character — which is sort of the point. Calling someone a foolio is rarely a hard insult; it's usually said with laughter barely suppressed, the verbal equivalent of an eye-roll paired with a head shake. Common in casual American speech, hip-hop-influenced language, and friend groups where roasting is a love language.
You seriously forgot the tickets? Come on, foolio, I told you three times.
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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(slang) A fool.