Whituesday or Whittuesday: How To spell?
The word Whituesday is misspelled against Whittuesday, a noun meaning "The day following Whitmonday; -- called also Whitsun Tuesday."
Whittuesday has double "tt" is mispronounced as "t"Remember double 'TT' in between the strings whi & uesday which should not be misspelled with single 'T'
Wrong Spelling:  whi-t-uesday  Correct Spelling:  whi-tt-uesday 
Check more misspelled words of Whittuesday to spell it correct.