Fag Nugget Share definition Flag A small chunk or "nugget" of shit left on a man's penis after anal intercourse with another man. God damn it Rick, I found a another fag nugget in the coffee jar this morning, stop fucking on the bench Fag Nugget by Kangajew October 3, 2010 0 0 Get merch Get the Fag Nugget mug. Buy Now — $32.95 See more merch