The skin in-between your bottom lip and the bottom of your chin.
One could use ones chinskin when pulling a joey.
Ones chinskin can end up saggy if one does not exorcise the chinskin by pulling joeys on a regular basis.
A side-effect of cannabis use that causes the muscles of one's eyelids to become relaxed and slightly closed to take on the appearance of someone from Asian - or 'chink' - descent.
A similar side-effect sometimes called 'red-eye' can also occur if a user is a new smoker or just smokes a lot. This is caused from dilation of the capillary veins within the eyes.
Shit man, don't be chinking so hard when we get to school! The teacher's will know we're stoned!
During the summer months, middle-aged Chinese men roll up their shirts or t-shirts all over China, creating a sort of bikini as they are revealing their abdominal area and lower back. Thus the glorious, aptly named: chinkini.
It can look even more amusing when chinkini-wearing Chinese men are drunk on bai jiu and/or swearing at the high temperature.
A: LMFAO dude look at that chubby guy's chinkini!
B: 我听不懂. (I do not understand)