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1.
A chin that juts out in one direction that slightly resembles a penis.
Dude, that chicks penis chin made it so hard to make out.
by Marie Ressler December 21, 2009
 
2.
a chin that has a vertical crease or clef in it, but not quite a dimple. so it kinda looks like the head of a penis. a rare find.
That's not a dimple! It's definitely a penis chin.
by droit84 May 03, 2007