How to pronounce “stumpy” in English

one uh in a town called Kanger um and we we went with the shotguns pretty simple it worked in the cold and we could wecould we offered a selection of ammunition uh we to save weight we we'd swn off our shotgun so we had Stumpykind of Bank job that was Pen's Department unbeknown to me he'd actually emptied the shot out of most of the cartridges