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 5, 2004
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Someone with nostrils so large you could slide your dick right up their nose.
man, have you seen keisha's cock nostrils?

yea! aw sick dude!
by Mr motherfucker January 28, 2017
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