Sin Chin: The abrasion a woman is left with after making out with some guy who didn't have the decency to shave his stubble therefore leaving her looking busted with a red-ass chin the next day.
me: "Yo, who you with last night!?"
skank: "Who? What?"
me: "You got sin chin bizzatch...tell that douche bag to shave next time!"
skank: "Who? What?"
me: "You got sin chin bizzatch...tell that douche bag to shave next time!"
by Ho's R People 2 December 9, 2008
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by Vleis.van.den.Doos March 30, 2009
Get the sinchin mug.Another word for a double chin.
by Phil.123.Smith July 23, 2007
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