Learner's definition of BLIP
1 : a bright dot on the screen of an electronic device (such as a radar) — often used figuratively
At that time, the organization was only a blip on the political radar screen.
As a football player he wasn't even a blip on the radar screen. [=he was not important; no one had noticed that he was or could become a good player]
2 : a very short high sound made by an electronic device 3 : something that is small or unimportant or that does not last a long time