Drubbing rhymes with:
rubbing, scrubbing, clubbing, dubbing, rubbing, scrubbing, snubbing, subbing, absorbing, bisbing, bobbing, bribing, clubbing, cribbing, curbing, dabbing, describing, disturbing, dubbing, ebbing, gabbing, grabbing, helbing, hibbing, hobbing, hobnobbing, inscribing, jabbing, libbing, lobbing, nabbing, perturbing, prescribing, probing, ribbing, robbing, rubbing, scrubbing, snubbing, sobbing, stabbing, struebing, subbing, subscribing, tabbing, throbbing, transcribing, tubing, webbing
Drubbing sounds like:
deriving, drabinsky, draping, drepung, dripping, driving, drooping, dropping, droppings, dwarfing