Etymology
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zap 

1929 as a sound, 1942 as a verb; a comic strip word (especially from "Buck Rogers in the Twenty-Fifth Century"), of imitative origin. Meaning "erase electronically" is 1982. Related: Zapped; zapping.

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zapper (n.)

electrical pest-killer, 1970, from zap.

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choad (n.)

also chode, "penis," by 1968 (Zap Comix), U.S. teen slang, of unknown origin. Guesses include supposed Navajo chodis "penis" ["Cassell's Dictionary of Slang" 2005], or a supposed Hindi, Bengali or Gujarati vernacular word for "copulate" ["New Hacker's Dictionary," 1996].

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