How do you say dude in Chinese?

Answer 1

There isn't a word for dude in Chinese.

But dude also means guy = man.

Man = 男子 Nánzǐ

But you can also say guy = 傢伙 Jiāhuo

Answer 2

In Chinese, you can say "哥们" (gēmen) to refer to a male friend or "老哥" (lǎogē) for a more casual way to address someone as "dude".