Facesibling
A made-up sibling you added on Facebook just to feel important. No real relationship. Just a stupid title. It only works on Facebook.
My facebrother is my boss. He added me. Now I have to pretend we’re close.
I put my dentist as a facesibling. He said I was a weird kid.
My facesister is my pet goldfish. She has 10 likes. I have 2.