Plumbing on a girl Share definition Flag Urinating on a girl's face in a professional matter. No one is saying plumbing on a girl gives you the ability to fly; also, no one isn't. Plumbing on a girl by smashedguitarist September 1, 2016 0 0 Get merch Get the Plumbing on a girl mug. Buy Now — $32.95 See more merch