The phrase "was on up up" is spelled using the International Phonetic Alphabet (IPA) as /wɑz ɑn ʌp ʌp/. The "w" and "a" sounds are pronounced as in "water". The "z" sound is pronounced like "zoo", while the "n" sound is similar to "noon". The "ʌ" sound is similar to "cup". The repeated "up" sounds are pronounced with the same "ʌ" sound. Overall, the spelling of this phrase accurately represents the sounds of each word.