Pronunciation: [fˈɛl ˌʌp ˈɒn] (IPA)
Correct spelling for the English word "fell up on" is [fˈɛl ˌʌp ˈɒn], [fˈɛl ˌʌp ˈɒn], [f_ˈɛ_l ˌʌ_p ˈɒ_n] (IPA phonetic alphabet).
Correct spelling for fell up on