おじちゃん

uncle, older man

おじ uncle + ちゃん affectionate diminutive
noun Rare #38,635
uncle, older man A familiar or affectionate way to refer to an uncle or an older man; often used by children.
JA: おじちゃん、これを見て!
EN: Uncle, look at this!

おじちゃん

Is that you, Uncle?

— バトル・ロワイアル (2000)

おじちゃんママどうしたの

Uncle... Mom, what’s wrong?

— バトル・ロワイアル (2000)

おじちゃんお前にプレゼントだって

Uncle says this is a present for you.