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A phrase coined by the UFC's Tony Ferguson, meaning "Champ Shit Only." Implying that he is the true UFC Lightweight champion of the world.
"Where you at McNuggets, you fucking piece of shit, I'm gonna kick your ass! You better come and defend that belt, defend or vacate motherfucker! CSO motherfucker!"
by meatspin.fr May 05, 2020
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Jul 20 Word of the Day
A pick me is a woman that is willing to do anything for male approval. She will embarrass or throw other women under the bus to achieve this goal. The unfortunate thing about a pick me is usually the men they are trying to seek approval from are of poor quality and treat women badly, leaving little real benefit for the pick me.
Pick me: If a man cheats on you, it's probably because you your fault. Be feminine! Make him food! Clean his ass hole!

Rational person: Shut up psycho
by 84848cheese December 01, 2020
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2
Community Service Officer.
University Employees that provide Escorts and Campus Security. They are often underpaid, overworked and stalked by their clientel.
Can I request an escort from a CSO.
A really cute CSO walked me home last night.
by suptrupe November 22, 2005
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4
Completely Sold Out
USUALLY in regards to tickets to a concert of event
I hate it when tickets are CSO early
by MannyFresh September 05, 2005
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5
Complicated Significant Other, for example being friends with someone who rejected you but he's still kinda flirty, etc. There's no other name for your relationship. Can only be used when you're single and he's your or one of your closest things to boyfriend, lover, etc.
"Are you two dating?"
*leans in and whispers*
"he's my CSO I was talking about!"
"Oh!"
by cupcakes3659 December 11, 2016
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6
Crakaz shot on sight

policy in many hoodz includin mine REXDALE
CSOS compton, detroit, east la lota stuff
by Desi_Doubkle December 07, 2007
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