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1.
Any individual, generally female, whose mouth is shaped and designed primairly for the insertion of male genitals. The shape, size, and controlled contortions of said aperture can all lend themselves to its defining as a 'cock shaped mouth'.
"She's got a stupid cock shaped mouth on her...... I could see how it would be appealing when drunk"

"That cum dumpster has a serious cock shaped mouth"
by Twanker94 February 27, 2012