Here's what rhymes with oomma.
summa puma satsuma Words that almost rhyme with oomma
una tuna duenna lacuna vicuna outta oeuvre ua hua tua hula tuba chukka doodah supra sutra pupa stupa scuba pukka louvre helluva bazooka beluga fistula macula appaloosa manoeuvre scrofula barracuda hallelujah outmanoeuvre incunabula