blip (
http://definr.com/blip)
n 1: a sudden minor shock or meaningless interruption; "the
market had one bad blip today"; "you can't react to the
day-to-day blips"; "renewed jitters in the wake of a
blip in retail sales"
2: a radar echo displayed so as to show the position of a
reflecting surface [syn:
pip,
radar target]