When other people's statues, pictures, and likes show up on your page...so when you know to much about them it makes it look like you are a stalker or Facebook creeping.. just because their information showed up on your wall.
Alex: " hey whats up I heard that you liked Jason even though you have a crush on Jake.... I only wrote that on Facebook how do you know" O____0
Me:" um-mm your Facebook leaked on my wall"
Alex: " oh okay I thought you were Facebook creeping me"