Facebook bum - A human who would rather talk to a robot than a real person.

A human who would rather talk to a robot than a real person. They're stupid, they're lonely, and they're probably going to die on Facebook.

'I just posted a status. No one liked it. I'm going to die.'

'My only friend is my cat. He follows me on Facebook.'

'I have 1000 friends. None of them know me.'