Curbing rhymes with:
disturbing, perturbing, absorbing, bisbing, bobbing, bribing, clubbing, cribbing, dabbing, describing, disturbing, drubbing, 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
Curbing sounds like:
caravans, carbonize, carbons, carpencic, carpencic's, carping, carving, carvings, cervenka, cherrapunji, chervenak, chirping, chriboniko, chriboniko's, corpening, craven's, cravens, craving, cravings, creepiness, creeping, cribbing, cropping, curving