Whadafaxmachine Share definition Flag Used as a way to express strong feelings of anger, confusion, or enjoyment. Dude1: This monkey is jacking it. Dude2: Whadafaxmachine?!!?!?!?!?!?!?! Whadafaxmachine by Phyrast August 3, 2007 0 0 Get merch Get the Whadafaxmachine mug. Buy Now — $32.95 See more merch