Meaning of the word "all men's friend is no man's friend" in English

What does "all men's friend is no man's friend" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

all men's friend is no man's friend

US /ɔːl mɛnz frɛnd ɪz noʊ mænz frɛnd/
UK /ɔːl mɛnz frɛnd ɪz nəʊ mænz frɛnd/
"all men's friend is no man's friend" picture

Idiom

a person who is a friend to everyone is not a true friend to anyone, as they lack loyalty or deep commitment to specific individuals

Example:
He tries to please everyone in the office, but remember that all men's friend is no man's friend.
I don't trust his neutrality; all men's friend is no man's friend.