哥們太鐵，同食同寢，在他人看來“基”情四射，這樣的朋友就被稱為butt buddies。

Butt buddies is a term used to describe very very very close friends of the same sex. Almost as if they were gay but they certainly aren't gay. Often seen together 24/7.

“煙屁股朋友”（butt buddies）用來描述非常非常非常要好的同性朋友。他們好得幾乎像是同性戀但事實上又不是。經常沒日沒夜呆在一起。

例句：

"Dude, I see you and Kevin together all the time; are you guys like butt buddies now?!"

“哥們，我看你和凱文一直黏在一起；你們現在成了好基友啦？“

（中國日報網英語點津 侯瑋萍）