Here's what rhymes with quoddum.
Words that almost rhyme with quoddum
sudden button mutton globin glutton dudgeon erratum piton nubbin dubbin exciton bludgeon scutcheon escutcheon unbutton androgen bellybutton ahem caecum corundum dumdum custom humdrum buxom buncombe bunkum secundum accustom conundrum jejunum cementum colostrum carborundum