wtf mayyam Share definition Flag an exclamation of shock, astonishment or sheer puzzlement. Originating from North West London. 1) You ate all my food? WTF MAYYAM?! wtf mayyam by yeh_u_blatently_luv_me_up March 6, 2009 0 0 Get merch Get the wtf mayyam mug. Buy Now — $32.95 See more merch