WBM Share definition Flag Refers to wannabe mocros (Moroccans). White people who behave like mocros; they listen to mocro music and smoke with mocros. That white dude is listening to mocro music again, what a WBM! WBM by Ku Klux Klan 0481 June 19, 2016 0 0 Get merch Get the WBM mug. Buy Now — $32.95 See more merch