chadweiser Share definition Flag A an overweight white man with a mullet. Behind a sign saying 'Chadweiser' Also consitered Bonecrusher. "Man my chin looks fat. I got a Chadweiser." chadweiser by Ley. June 25, 2004 0 0 Get merch Get the chadweiser mug. Buy Now — $32.95 See more merch