"electronic noise," 1953 (originally in reference to a Geiger counter), imitative; later associated with Sputnik. As "bleeping sound edited over a spoken word deemed unfit for broadcast" from 1968.
1957, "make an electronic noise," from bleep (n.); specific sense of "edit a sound over a word deemed unfit for broadcast" is from 1968 (earliest reference seems to be to the "Smothers Brothers Comedy Hour" on U.S. television). Related: Bleeped; bleeping. Bleeper "pager consisting of a mini radio receiver that announces reception of signals by emitting a bleeping noise" is from 1964.
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