Midies or Middies: How To spell?
The word Midies is misspelled against Middies, which is plural of "Middy"
Middies has double "dd" is mispronounced as "d"Remember double 'DD' in between the strings Mi & ies which should not be misspelled with single 'D'
Wrong Spelling:  Mi-d-ies  Correct Spelling:  Mi-dd-ies 
Find more wrongly spelled words of Middies to spell it well.