1 definition by Dude 7206

Top Definition
When someone's chin isn't double but runs directly from ones chin to ones neck at a 45 degree angle.

The opposite of Double Chin

Think Cankels except in the neck area.
I tried to kiss her "Unichin" I could not tell if I got her face, chin, neck or shoulders
by Dude 7206 September 21, 2010

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