how does the humbug's personality match his name

Humbug is a lazy egomaniac who thinks everything not to his interest is humbug. He is, however, charasmatic enough that we like him!

Humbug's name itself means deceptive or false talk or behaviour. In The Phantom Tollbooth, the Humbug is a giant beetle-like bug who likes to invent stories. like he said that humbugs made the history. Humbug's name definitely matches with his personality.