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dust nuggets is when a guy/girl grabs the crotch and strokes it gently until his/her nuts have been dusted. Also reffered to as old man balls. Or the scratching of the crotch.
"Man did you see that chick dusting nuggets?"

"Well Jebodia in the city people dust nuggets 24/7"

"Well Billy if you come in my house I'll let you dust my nuggets" inspired by the creepy old guy on famly guy
by leah b and shelby f May 31, 2009