Most people think I got Faceb from Facebook, but that is only partially true.
I was having a party and someone got on facebook. One of my friends only saw "Faceb" (Pronouced Face - eb) and was like who's Faceb? Who's Faceb? and we were deliriously tired and so it was incredibly funny. So we just kept on repeating it and laughing more and more. So to keep the memory alive most of my user names are Faceb.