おいおい

犬が死んだ時(とき)彼(かれ)はおいおいと泣いた。

When his dog died, he cried his heart out.

オイオイ。貸した金(かね)を返さないなんてそれはないだろう。

Now just a minute there. I hope you're not trying to tell me you're not going to pay the money back.

おいおい、もう締め切りまで時間無いぞ？ぼやっとしないでくれたまえ。

Hey, there's no time left till the deadline, you know? Stop hanging around in a daze!

おいおい、一枚看板のお前が来(くる)れないんじゃ、今日の合コン盛り上がらないよ。

We're counting on you to be the life of the party. It'll bomb if you don't come.