biggity

biggity

Conceited or haughty. Don't invite Joe to lunch unless you want to hear him brag about all the important things he's doing in his new job. He's so biggity lately.
Farlex Dictionary of Idioms.

biggity

(ˈbɪgədi)
mod. haughty; aloof. Kelly is too biggity for my taste.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • (as) cocky as the king of spades
  • cocky
  • cocky as the king of spades
  • be going great guns
  • if (one) is a day
  • if he is a day
  • if he's, she's, etc. a day
  • be full of (oneself)
  • be a moot point
  • moot