EXAMPLES FROM THE WEB FOR BLIP
There was the blip of the leading ship, the "point" of the formation.
"Picked up a blip on the radar, Captain," replied the radar officer.
When we find it, the blip on the scope will stand out very plainly.
Let me know the minute you get a blip, because it probably will be that Consops cruiser.
He sat at the main screen, and studied the blip, making tiny crayon marks.
Here and there a blip, a clear horizontal line, thrust out both ways from the center.
He watched the blip which was the captured ship as it seemed to hesitate a very, very long time.
After a long time the blip reached the bottom, and the vertical line became double and another blip began to descend.
A blip moved downward across it, showing their height in thousands of miles.
There in front of him was a blip, traveling at amazing speed, straight for his ship.
1894, in reference to a kind of popping sound, of echoic origin. Radar screen sense is from 1945. As a verb from 1924. Related: Blipped; blipping.