wabacha Share definition Flag Said when white people warn others of a black person approaching. Used so white people can brace themselves. Person a: Hey how is it going? Person b: Wabacha!! Person a: where?! Why didn't you warn me sooner? wabacha by person951623847 July 5, 2008 0 0 Get merch Get the wabacha mug. Buy Now — $32.95 See more merch