How Do You Spell CLEANING UPON?
Pronunciation: [klˈiːnɪŋ əpˌɒn] (IPA) 
The phrase "cleaning upon" is not a commonly used expression. It may be a typographical error meant to be "cleaning up on", meaning to make significant gains or success. However, the spelling of "cleaning upon" can be broken down phonetically as /ˈkliːnɪŋ əˈpɒn/, with the stress on the second syllable of "cleaning" and the first syllable of "upon." This would suggest that the "u" in "upon" is pronounced with a short "uh" sound, as in "up."
