What rhymes with feedbacker

attacker, backtracker, barebacker, blacker, clacker, claquer, counterattacker, feedbacker, flaker, greenbacker, hacker, horsebacker, jacker, lakher, macer, quacker, racker, sacer, sacker, shacker, stacker, switchbacker, tacker, thwacker, unpacker, whacker, wisecracker, wracker