Dulhead or Dullhead: How To spell?

The word Dulhead is misspelled against Dullhead, a noun meaning "A blockhead; a dolt."

Dullhead has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings du & head which should not be misspelled with single 'L'
Wrong Spelling:  du-l-head 
Correct Spelling:  du-ll-head 
Check more misspelled words of Dullhead to spell it correct.