As in a blip on a radar screen - A piece of information (usually a picture or video/audio
clip) that gets passed from person to person via
email that momentarily becomes part of the collective
consciousness of the Internet but quickly fades into obscurity only to be recalled hazily later at parties.
"
Hey, did you get the blip of the guy on the Home Shopping Channel falling off the
ladder and landing on his head? No? I'll
ping you with it tomorrow."