Butterballs rhymes with:
fireballs, basketball's, basketballs, eyeballs, fastballs, fireballs, football's, footballs, handballs, meatballs, mothballs, oddballs, snowball's, snowballs, softballs, spaceballs, spitball's, trackballs
fireballs, basketball's, basketballs, eyeballs, fastballs, fireballs, football's, footballs, handballs, meatballs, mothballs, oddballs, snowball's, snowballs, softballs, spaceballs, spitball's, trackballs