blabber, blacker, bladder, blatter, blobber, blocher, blocker, blotter, bracher, bracker, brader, bragger, brocker, brodeur, clapper, clatter, clobber, clocker, clogger, clopper, clotter, crabber, craber, cracker, crapper, crocker, cropper, drabber, dragger, dropper, gladder, grabber, gropper, klapper, platter, plocher, plodder, plotter, prodder, proper, propper, tracker, trapper, trotter