blip

Short definition from Wiktionary

Noun

1. 1
   A small dot registered on electronic equipment, such as a radar or oscilloscope screen.
2. 2
   A short sound of a single pitch, usually electronically generated.
3. 3
   A brief and usually minor aberration or deviation from what is expected or normal.
4. 4
   An individual message or document in the Google Wave software framework.

Verb

1. 1
   To make a short beep sound.
2. 2
   To change state abruptly, such as between off and on or dark and light, sometimes implying motion.
3. 3
   Synonym of bleep (“to replace offending words in a broadcast recording with a tone”).
4. 4
   To apply the throttle briefly when downshifting, to provide a smoother gear transition and prevent wheelspin.