Nut Duster 

A small patch of hair on a mans chin. Not exactly a goatee because it's not connected to a mustache, but bigger than a soul patch. Commonly used in a derogatory manner.

Man, check out this picture of Ethan Hawke. He's sporting a bitchin' nut duster.

Michael thinks he's so cool since he grew that goofy looking nut duster. Somebody should tell him to shave.

Nut Duster by jmoney1776 March 2, 2009

Nut Duster 

A person's (hopefully a man's) goatee.

Phil is trying to grow a nut duster.

Nut Duster by Nick January 18, 2004

The Nut Duster 

When fucking a giraffe in the ass, the small tuft of hair on the end of its tail is used to gently tickle the scrotum for pleasure.

Small child:Mommy what's that dirty dirty man doing to that adolescent giraffe?
Mom:Oh don't look honey, it's just the nut duster, you'll understand when you're older.

The Nut Duster by Steveshiftyshaft January 18, 2011

Nutduster 

A style of facial hair also known as a soul patch. It's a small patch of hair on the chin just below the lip. It would be in the perfect position to dust off a set of nuts that would be on the man's chin as was performing fellatio.

It's not a soul patch, it's a nutduster!

Nutduster by shaft311 October 20, 2008