Ok, so maybe it's an exaggeration to say that everyone does that. I bet you'd be surprised if you really sat down and thought about it though.
"You know, Leslie Fischer and I are totally BFFs. She went to the dance with Bobby Jones and told me all about it. She told me he dumped her to hang out with his friends and then started dating that tramp Haley Freeman."
Who would a high schooler lie about being friends with? Was I really that lame that I don't recall ever doing that?