WMD (Wheeler Magnet Definer) Share definition Flag A pseudonym for Zak Vaudo. He is apparently not fooling ANYONE. He's flirting with EVERY girl in the world? Must be a Zak Vaudo, the Wheeler Magnet Definer. WMD (Wheeler Magnet Definer) by MWD (Mainstream Wheeler Definer) October 27, 2004 0 0 Get merch Get the WMD (Wheeler Magnet Definer) mug. Buy Now — $32.95 See more merch