|1.||Pics or Fake|
If someone on a forum website starts a thread or makes any kind of questionable claim, someone will probably reply to the post saying "Pics or Fake". As in, "post pics to prove that you are telling the truth, otherwise you are lying". %90 of the time this does not provoke the intended outcome, and goes relatively unnoticed by the OP.
Original post: "Seriously, one time I ran into Tina Fey at a bar in New York."
Reply: "Pics or Fake."