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Ah, I read this wrong. I thought it was look someone up and figure out who you follow whom they also follow. Would rather you call this 'reciprocals'.

Alas, it's a fairly established term at this point.

the earliest meaning of "mutual" was "reciprocal", the sense of "in common" is rather new.

also hi vh!

I guess "Mutual admiration society" is too 20th century.

"Internet persona(s) who happens to follow you and you happen to follow them..."

I had to look it up too. Just two people who each follow each other on social media.

Someone that you follow and also follows you.