the act of forming an "O" with the thumb and the index finger and positioning the "O" on your chin.

Chin it is used as a swear of honesty, when one "chins it" he or she must tell the truth and only the truth.
"Hey I just got a new car!" "No way CHIN IT!" "I chin it"

"Hey guys I chin it I have to use the bathroom"
by Rollieo July 6, 2008
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Someone you don't fuck with. Typically kills herd of 1.2 billion fuckin' ugly reds.
by Crispy Jack June 4, 2015
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A character from the popular YouTube series "Filthy Frank Show". A "dark lord of the omniverse", he is a powerful entity that harvests chromosomes from the prtoagonist. This creature resembles a man with eyes completely shut, in a dark lycra suit. His name comes from the japanese word "ochinchin", that means "wiener", or "dick". Lord Chin-Chin is the main antagonist of the show.
"Chin-Chin is a stupid cunt" - Filthy Frank.
by gay_trash December 21, 2017
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1. A way to helplessly take bad news and shrug it off.
Q: How did your exam go?
Q: Took it on the chin
by cuzmore December 19, 2010
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A game, originating in the Midwestern region of the United States, in which participants attempt to photograph one another with their chin on or near the shoulder of an unsuspecting bystander. The quality of a chin is based on proximity to and uniqueness of the person being chinned.
Sally was chinning everyone at the concert last night. She even managed to chin the drummer - wait until you see the album!
by @duhchinning September 20, 2011
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A contemporary past-time where participants force the chin and neck into contorted positions, with the ultimate goal of creating as many extra chins as possible. 'Chinningers' (as practitioners of this hobby are known) will then often take photographic images of 'chinnings' in order to post publicly on the internet, using social media platforms such as facebook or twitter.
Dave: "Tell you what Steve, the muscles round the back of my head and neck smart somewhat."

Steve: "Why's that Dave? Sleep funny did you?"

Dave: "Hell no Steve, I was up all night chinning again! Don't really bother with sleep much since I discovered chinning. Might need a couple of rest days now though, think I may need to review my warm-up routine; can't be doing with missing out big chunks of the chinning season through injury again."
by goodoldjimgold July 12, 2012
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To be on the losing end of a fight.
No wonder he got chinned, he was acting like a right tit
by gobshite March 2, 2005
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