uha-uha
Overjoyed to the point of giddiness, often about financial gain or unexpected good fortune. Slightly informal and playful.
💡Winning big at pachinko — 'He was uha-uha counting his winnings.'
ボーナスが出て、うはうはだ。
I got my bonus and I'm totally uha-uha.
Business was booming and the shop owner was ___ with joy.
商売が繁盛して店主は○○だった。