Gibing or Gibbing: How To spell?
The word Gibing is misspelled against Gibbing, which is present continuous of "Gib"
Gibbing has double "bb" is mispronounced as "b"Remember double 'BB' in between the strings Gi & ing which should not be misspelled with single 'B'
Wrong Spelling:  Gi-b-ing  Correct Spelling:  Gi-bb-ing 
Find more wrongly spelled words of Gibbing to spell it well.