Whifing or Whiffing: How To spell?
The word Whifing is misspelled against Whiffing, a noun meaning "A mode of fishing with a hand line for pollack, mackerel, and the like."
Whiffing has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings Whi & ing which should not be misspelled with single 'F'
Wrong Spelling:  Whi-f-ing  Correct Spelling:  Whi-ff-ing 
Find more wrongly spelled words of Whiffing to spell it well.