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."