When a womans cunt is so fat it sags, and forms like a cuntchin.
Hince: cunt+chin= cuntchin
"DUDE! her pussy was so floppy from her cuntchin, I had to hold the lips back to get it in."
by Mrs. JCC0312 January 17, 2008
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someone who has a cleft chin
My god that movie star Kirk has such a cuntchin.
by Wayne Cornish November 4, 2007
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