Balloned or Ballooned: How To spell?
The word Balloned is misspelled against Ballooned, an adjective meaning "Swelled out like a balloon."
Ballooned has double "oo" is mispronounced as "o"Remember double 'OO' in between the strings ball & ned which should not be misspelled with single 'O'
Wrong Spelling:  ball-o-ned  Correct Spelling:  ball-oo-ned 
Find more incorrect spellings of Ballooned to spell right way.