YOU SAID:

I am friends with idiots.

INTO JAPANESE

私は友達の馬鹿です。

BACK INTO ENGLISH

I'm the idiot friends.

INTO JAPANESE

私は白痴の友人です。

BACK INTO ENGLISH

I am a friend of idiocy.

INTO JAPANESE

私は白痴の友人です。

BACK INTO ENGLISH

I am a friend of idiocy.