Flasher's rhymes with:
flashers, flashers, bashers, brashers, flashers, hasher's, hashers, afshar's, bashers, boshers, brashers, crushers, desrochers, dishwashers, extinguishers, finishers, fischer's, fisher's, fishers, fissures, flashers, glacier's, glaciers, gushers, hampshire's, hamptonshire's, hasher's, hashers, kingfishers, mushers, new-hampshire's, photofinishers, pressure's, pressures, publisher's, publishers, publishers', pushers, staffordshire's, ushers, washers, wishers
Flasher's sounds like:
felker's, filigrees, flashers, flickers, folger's, folgers, folkers, folkrock