Here's what rhymes with backish.
blackish brackish Words that almost rhyme with backish
waggish haggish haggis parish banish palish lavish vanish radish hashish mannish faddish famish raffish kaddish caddish laddish anguish catfish vanquish brandish clannish flattish snappish blandish establish outlandish languish flatfish reestablish disestablish