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