Etymology

blowjob

blow·job
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Today it means: An act of fellatio, or sucking a penis or other phallic object (such as a dildo). Full definition →

First used 1942
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The story

First used in the USA. From blow off (“to fellate”, originating among prostitutes from 1933) + job.

First known use, by meaning

  • from 1942 An act of fellatio, or sucking a penis or other phallic object (such as a dildo).

Etymology from Wiktionary, CC BY-SA 4.0.