blip

• POS: Noun, Verb (usu participle)

CIDE DICTIONARY

blip, n. 

•  a spot of light on a radar screen, showing the position of a reflecting surface, such as an airplane or ship.

  "this sense is also used metaphorically to mean a barely perceptible object; , Kennedy's candidacy was a mere blip on Humphrey's radar screen until he won the West Virginia primary. This is the probably origin of sense 3."  [WordNet 1.5]
•  a short upward or downward deviation from a trend line on a graph, especially in a plot of some variable, such as an economic variable, against time; as, a brief blip upward in the unemployment rate.  [PJC]
•  something small or insignificant.  [PJC]
•  a brief interruption in the continuity of a recorded or transmitted signal; as, there is a blip on my CD of Beethoven's ninth.  [PJC]

OXFORD DICTIONARY

blip, n. & v.
--n.
1 a quick popping sound, as of dripping water or an electronic device.
2 a small image of an object on a radar screen.
--v. (blipped, blipping)
1 intr. make a blip.
2 tr. strike briskly.

Etymology

imit.