1 definition by Ubersturmbannfuhrer Donitz

Top Definition
The opening at the end of the penis. 2. When your best friend turns into a nagging fucking whining bitch, he/she becomes this. 3. A failed attempt at being human.
"Dude, I think my cocknostril is infected...

"Shut up man, you're turning into a cocknostril".

Person 1: "Hey look at that homeless bum!"

Person 2: "Yeah, that guy's a cocknostril."
by Ubersturmbannfuhrer Donitz February 19, 2010
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