can you hide friends on fb?

[Pegasus]

i know you can hide what your friends put, i mean if you became friends with someone can you like hide that your friends with them? for example if i became friends with this person noone likes, i could hide them, like so even looking down my friends list others wouldnt be able to see.
i was jw because you can have like groups that noone else can see except the people in it, and celebs do it to seal their identities even from one another