Definitions by A1C Miller

HUA 

Pronounced as 'Huah', it is used among the US Air Force in verbal communication as an acknowledgement. Also used in expressing joy or intense approval.

"Be at the gym at 0930, ok?"
"Hua."

"The entire Wing is getting a three-day weekend."
"Hua!"

HUA by A1C Miller June 20, 2006