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2.
The puffy curly hair, usually very untidy, on the back of a hairy dude's neck. Commonly associated with overweight to obese men. Typically used as an all-purpose pillow or 100% effective contraception.
Becky: So what did you think of Ricky?
Katelyn: He's a nice guy, but he has a huge neck fro!
Becky: Ewww, good thing he doesn't have your number.
by Captan Hammer. December 13, 2012
 
1.
An afro that grows on the neck
Damn 802.1q needs to trim his neckfro.
by HeadShot April 30, 2003