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