Ofhand or Offhand: How To spell?
The word Ofhand is misspelled against Offhand, an adjective meaning "Instant; ready; extemporaneous; as, an offhand speech; offhand excuses."
Offhand has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings O & hand which should not be misspelled with single 'F'
Wrong Spelling:  O-f-hand  Correct Spelling:  O-ff-hand 
Browse incorrect spellings of Offhand to spell it good.