Wahallah Share definition Flag Nigerian (naturalised or otherwise) pidgin English for 'Trouble' or 'Problem' Dis boy dey for coz wahallah now = this guy is causing trouble No wahallah = No problem Wahallah by Oilscum Dave October 18, 2003 0 0 Get merch Get the Wahallah mug. Buy Now — $32.95 See more merch