How Do You Spell WAST ON THE UP?
Pronunciation: [wɒst ɒnðɪ ˈʌp] (IPA) 
The phrase "wast on the up" is often used to describe something that is improving or gaining momentum. The spelling of "wast" here is an archaic form of the word "was" and is pronounced /wɑst/. The "o" in "on" represents a schwa sound, meaning it is unstressed and pronounced as /ən/. Lastly, "the up" should be pronounced with a schwa sound for the "e" and an "uh" sound for the "u", making it /ðə ʌp/. Together, the phrase is pronounced /wɑst ən ðə ʌp/.
