Rapping rhymes with:
scrapping, strapping, trapping, unwrapping, wrapping, capping, clapping, flapping, lapping, mapping, napping, recapping, sapping, scrapping, slapping, snapping, strapping, tapping, trapping, unwrapping, wrapping, zapping
Rapping sounds like:
rabin's, rabobank, raping, rappahannock, ravenous, ravens, ravin's, ravines, raving, ravinous, ravinus, reaping, rebuffing, refenes, refinance, refinances, refines, refining, refinish, reopening, reopens, repaying, repinski, reponse, revenge, revenues, reviewing, reviving, revving, ribbing, ribbons, riffing, ripening, ripping, robbing, robbins, robin's, robins, robins', robins's, roofing, roping, roving, rovings, rubbing, rubens, rubin's, ruffing, rybinski