Flitermouse or Flittermouse: How To spell?
The word Flitermouse is misspelled against Flittermouse, a noun meaning "A bat; -- called also flickermouse, flindermouse, and flintymouse."
Flittermouse has double "tt" is mispronounced as "t"Remember double 'TT' in between the strings fli & ermouse which should not be misspelled with single 'T'
Wrong Spelling:  fli-t-ermouse  Correct Spelling:  fli-tt-ermouse 
Check more misspelled words of Flittermouse to spell it correct.