Ninchin

Description of a person who has a divoted chin. Name derived from the crossing of 'ninja foot' and 'chin'. See also "Grenade Chin".
Matty has a ninchin, you could hide a roll of dimes up in that bitch!
by ketelred February 11, 2009
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Ninchin

An individual with an under bite.
"That new girl with an under bite is a ninchin." Girl- "I'm not a ninchin!"
by digitaldp September 26, 2019
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