Mugy or Muggy: How To spell?
The word Mugy is misspelled against Muggy, a comparative word meaning "Moist; damp; moldy; as, muggy straw."
Muggy has double "gg" is mispronounced as "g"Remember double 'GG' in between the strings mu & y which should not be misspelled with single 'G'
Wrong Spelling:  mu-g-y  Correct Spelling:  mu-gg-y 
Check more misspelled words of Muggy to spell it correct.