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1. The act of demoting a sucka to his proper place typically via a swift jab to the mandible.
1. Fabrizio got out of line so I chin checked him.
by Slanford dictionary December 13, 2003
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a glancing strike to the chin which causes the jawbone to compress the trigeminal nerve (cranial nerve 5) and cause pain and disorientation

also a single by N.W.A.
Cletus: I know about certain body areas, too. We gotta hit those guys in the ganglia.
Moonpie: Where?
Cletus: In the ganglia. That's a mess of nerves under the ear. You gotta drive the jawbone up in that mess of nerves and it rings a bell.
-discussion of chin checking in Rollerball
by mcnewbie March 31, 2009
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Chincheck, one of Australia's most skilled underground rappers. Named from the NWA song Chincheck. Him and Javid have won many many Oz Hip Hop Awards along side other underground rapper who have made it commerical since there such as Bliss and Eso.

Chincheck has made tracks with Figgkidd, Jadanger, Uneek, Hardtarget and many other respected rappers. Though his partner in crime is Javid. They combine to create Tha Legacy

yo chincheck bust us a freestyle
by Yo-sef August 11, 2006
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1. The act of putting someone in their place, the phrase originates from a person in jail tapping the chin of "the new guy" to test him.

2. An Australian underground rapper.
"He gave him the Chin Check yo."

"Chincheck has a new track up."
by UnbiasedDefiner October 10, 2005
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To strike a enemy on the chin with two fingers, letting him know you don't respect him. Often concidered the worst insult that can be givin in the hood. Almost worst that getting your chain snatched

How it's done:
Lift both the index and middle finger 18" above the head and swing down swiftly striking him/her from the jaw to the chin, while maintaining eye contact. End with an insult or a challenge to retalliate.
Daymn! He chin checked dat fool!

Yo, he size me one more time I'm gonna have to chin check him!
by Tru Greek July 06, 2006
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The act of surveiling your mate to see if they (usually a female) have been cheating. Literally, checking her chin for the testicles of another man to whom she has been giving oral sex. Made famous by the Snoop/Dre song, "Bitches Ain't Shit."
"...Snoop we got news/
Your girl was trickin' while you was draped in your county blues/
I ain't been out a second and already gotta do some muthafuckin chin checkin/
Move up the block as we groove down the block/
See my girl's house, Dre, pass the glock/
Kick in the do', I look on the flo'/
It's my little cousin Daz and he's fuckin' my hoe, yo/
(Bitches ain't shit)
I uncocked my shit...I'm heart-broke but I'm still loc'ed
Man, fuck a bitch!" - Snoop Dog and Dre, "Bitches Ain't Shit"
by johnwhkilla March 10, 2006
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