Chief Law Enforcement Officer, or Sheriff. The guy you need to get to sign off on your BATF Form 4 before the the BATF will approve a civilian for legally owning a machinegun or silencer.
My CLEO won't sign off on my Form 4. But, I'll be moving to Colt County in a month and then I'm goning to get me a machine gun because the Colt Co. CLEO will sign-off.
by Ricardovitz May 13, 2009
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Cleo is an amazing person and deserves everything in life,They are funny and super smart.
Who's Cleo?

Cleo is an amazing person.
by izukudripdoriya May 12, 2021
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A woman of statuesque beauty, an incomparable lady of luxury
That Beyonce, what a Cleo!
by Hooker69 January 9, 2006
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she’s the really beautiful girl who says she not but she knows she is. Cleo is everyone’s best friend but is also kinda weird... her boobs and ass are big and so is her personality. Cleo is usually boy crazy and very outgoing. She’s probably the cutest but not the hottest
Max: Yo smash or pass Cleo

Chris: Yo smash that phat ass so hard but i consider her more GF material
by Thiccynikki March 19, 2019
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When someone, post-breakup, pretends to not care about that person anymore or their new relationship
Person 1: Lori said she doesn’t like Zachary anymore
Person 2: She is just in denial

Person 1: Yep, she totally cleoing
by IKnewTheTruth December 19, 2022
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Cleo is a lean, mean, killing machine who always has her friend's backs. She's witty and funny and thinks on her feet. She is a master of slime making and a G at granny (the easy level, anyway). Cleo is a real smart cookie and a gift to those around her, she is creative and courageous and has a personality that lights up the room. Cleo is the human equivalent of a party-sized bag of chips, and I'm not talking low grade, dusty crusty chips, no! Cleo is a bag of HIGH-QUALITY CHIPS! Cleo is 100% impossible to beat at just dance because she is so full of energy and she puts all her energy into everything she does. Cleo should take a cucumber and carve out, 'I'm Da Best' on it, then tape it to her forehead so everyone knows!!!
My new teacher is the best, what a CLEO!
by thebloatedgoat July 31, 2019
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A person who is basically the man. He's pretty athletic and a real flirt. He says cool stuff like "shit was so cash" because he can. People strive to be him. Oh, and his last name is Kontoulas
Friend: Damn Cleo you were seriously spittin some mad game last night.

Cleo: Yeah shit was so cash
by KleoKontoulas September 9, 2010
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