Boco (n.) Share definition Flag Native North American Fatty. Indigenous to Rhode Island, but can be found swilling beer and triple cheeseburgers in Buffalo, NY. I have never seen anyone short boco put away three racks of ribs. Drew Bledsoe would be proud. Boco (n.) by jb March 12, 2003 0 0 Get merch Get the Boco (n.) mug. Buy Now — $32.95 See more merch