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1.
verb - to chin someone

- the violent act of punching someone in the face, much in the same vein as lamp
If I see him again I'll fucking chin him
by Zane Chaos March 31, 2005
 
2.
Spanish slang, commonly used in Dominican Republic to say:

- a tad
- a bit
- some

Oye, loco, dejame un chin de arroz!
(Hey, leave me some rice)
by Camardicus November 19, 2006
 
3.
slang for peole with chinese back ground.
i'm a chin for life.
by chindogg September 21, 2005
 
4.
a shortened version of chin up
man 1: i just got dumped by my girlfriend
man 2: fuckin' chins mate.
by moooooooooooooooose June 18, 2010
 
5.
originally a boxing term. refers to the resilience a fighter has, especially in regard to blows to the head.

someone who cannot handle getting hit in a fight very well is said to have a weak chin or a glass jaw. someone who can handle lots of abuse is said to have a strong chin.
dude 1: man, that guy's really taking a beating!

dude 2: yeah, but he's still fighting, look at him, it's like the punches aren't even affecting him.

dude 1: he's got a hell of a chin on him, that's for sure.
by facefault October 10, 2011
 
6.
Shortend version of "Chin Up"
Person A - Aww I lost £30 in the fruit machine

Person B - Chin!!
by Shane Phillips December 11, 2006
 
7.
Another name for marijuana, that is very discreet.
"Hey man you wanna go have some chin?"
"Yeah dude, lets get chinned as fuck!"
by Dr.Smeeth October 26, 2012