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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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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The act of proving your male dominance by fearlessly putting your testicles on someone else's chin. Bonus points if you use the word 'chin' in a way that could insult asians
You're paying for this round lest yee be chin checked.
***BONUS EXAMPLE*** if you're reading this you are most likely a bagger at a grocery store. So when an asian pays with a paper check, be sure to be right there and say the following: Chin Check yella!!! We don't accept Chin Checks
by Jebus - www.nerotheory.com August 25, 2003
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To set one's affairs in order after an extended absence. Etymologically derived from when someone stole your soup, and you had to check their chin for remnants.

Chin checking is a common practice in low-income neighborhoods where infidelity runs rampant. In low-income neighborhoods where infidelity does not run rampant, it hardly occurs. Chin checking is referred to as "Hush up, Brandeen" by honkies.
Drat, while in prison, my girlfriend has become disloyal. Chin checking must ensue, as a matter of postindustrial honor!
by Doug Dafoe May 10, 2005
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Punched in the chin, specifically, or just violence in general.
Show respect or get chin-checked!
by nokianinja October 07, 2002
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