A fake friendship is a non-romantic relationship you have with someone that is not genuine. Either party in this kind of friendship may talk bad about the other behind their back, lie, steal, cheat and ultimately should not be trusted. The worst part about a fake friendship is one or both people in the relationship usually act like they're best friends while in front of each other.
I told this girl, I'm tired of our fake friendship because she always talks bad about me to her boyfriend and makes fun of me all of the time when I'm not there.
When you are forced to be phonyfriends with someone you hate due to sharing the same work environment.
Mary: "Wow, did I just see you talking and laughing with Jane?"
Sarah: "Ya, she was transferred to our project - so now we're on the same team and are BFF's"
Mary: "Really? I thought you hated her?"
Sarah: "Oh I hate her fucking face. We're Best Fake Friends now."
Fake Friends are people who in a crowd tend to ignore you. They also don't talk to you unless they need something of you. Another thing is that they wouldn't five two shits about your feeling while all you do is care for them and there feelings even when they know you feel like shit they still do nothing. They only invite you to things if they can't find anyone else and ignore you when you invite them to things. Also if they happen to hook up with someone and they let him/her get in the way of your relationship with you they sick bastards that don't give a fuck about how you feel about it and don't care about you at all in general. They also try to avoid you basically at all coast. Also if you help them through things like a break-up or even a just a hard time for them and they still only care about themselves they are a fake friend. A fake freinds will always talk shit about you behind your back or make fun of you and say it's a joke but when your face to face they don't say anything they are fake ( or they are just a little bitch and won't talk shit to your face). Other than that a fake friend is a pussy ass bitch that thinks there too good for you.
Person that has fake freinds: I wonder why this person hasn't talked to me in so long.
REAL FREIND: I was talking to him last night and he was talking shit about you. But your other friendnd was deffending you.
PERSON THAT HAS FAKE FRIENDS: Wow what a pussy can't even say it to my face. At least I know I have a couple of real freinds.