A Divo
A man who thinks he's a diva just because he's got a letter after his name. He thinks being a 'dude' is the same as being a 'diva'.
'I'm not just a guy, I'm a legend.'
'He changed his name to 'Mr. Divo' because he thought it made him sound fancier.'
'He got angry because his nickname was 'Chuck' instead of 'Sir Chuck.'