Piging or Pigging: How To spell?
The word Piging is misspelled against Pigging, which is present continuous of "Pig"
Pigging has double "gg" is mispronounced as "g"Remember double 'GG' in between the strings pi & ing which should not be misspelled with single 'G'
Wrong Spelling:  pi-g-ing  Correct Spelling:  pi-gg-ing 
Find more wrongly spelled words of Pigging to spell it well.