What does Boxing Day have to do with boxing?
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.
A generalized euphemism substituted for a taboo or vulgar term; blankety-blank: your bleeping black ass/ They're a bunch of arrogant bleeps who think their stuff doesn't stink/ The movie ain't no blipping good
[1970s+; fr the practice of erasing objectionable material on a tape or in a soundtrack with a high-pitched sound called echoically a bleep]
[most senses fr earlier blip, ''a sharp blow or twitch'']