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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Top Definition
1) A nostril so big, a cock could literally fit inside of it.

2) Having intercourse with someone in a new and exciting orifice.
ex 1) Yo that girl had one hell of a Cock Nostril!

ex 2) Yo that was one hell of a Cock Nostril last night!
by Jenton and Shaiya November 05, 2004

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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your penis hole
bens dick sneezed baby juice out of his cock nostril
by mgurn3 September 12, 2015

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt