Cracker rhymes with:
bracher, bracker, racker, tracker, acker, aker, akre, attacker, backer, bakker, blacker, bracher, bracker, hacker, lacher, lacquer, macher, makar, packer, racker, sacher, schacher, slacker, stacker, tacker, thacher, thacker, thakkar, tracker, vanacker, wacker, whacker, zacher
Cracker sounds like:
caracara, caraker, cariker, carjacker, carragher, carreker, carriger, carriker, caseworker, charger, churchgoer, coarser, corker, corkery, corkscrew, corsair, corsaro, corser, courser, coworker, crager, craker, crazier, creager, cregar, creger, cregger, criger, crigger, croaker, crocker, crockery, croker, crooker, crosser, croucher, crouser, crozier, cruger, cruiser, cruser, crusher, curcuru, curiouser, cursor, cursory