brown-nosed willie Share definition Flag (n.)- A name used to describe a man's penis after anal sex, because the tip of the penis is covered in feces. Damn, the brown-nosed willie Jennifer gave me last night smells! brown-nosed willie by Max Bluntoff April 26, 2006 0 0 Get merch Get the brown-nosed willie mug. Buy Now — $32.95 See more merch