Pretending that you
don't know every single detail about a Facebook Friend's life so that you (a) do not seem like a
stalker or (b) have something to talk about. Also an antidote for
friends that over-share on social media.
(1) I had to feign Fabnesia when I was talking to my old girl friend so she
thought I wasn't checking her out on
Facebook! (2) If I didn't have Fabnesia, I would have had
nothing to say to him!