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1.
Having a deceptively long or big chin. At first glance might look like a regular chin but further inspection will reveal the disproportion it has compared to the face. Can also be used as a nickname for people with said chin.
Yo man, did you see babak's chin? That shit is huge, man is a chinja!
or
Yo Chinja!
by Romance_LRG February 01, 2011