genitals with the fingers or the hands for sexual satisfaction.
ETYMOLOGY: From the Latin masturbare , to disturb with the hand, possibly derived from masdo , virile member. The word masturbation is said to have been used for the first time by A. Hume in his Treatise Onanism: or Treatise upon the Disorders Produced by Masturbation (1766), but in Gulliver's Travels (1728), Swift makes the following puns: ' My master, Mr. Bates ' and ' poor Master Bates '. See masturbation for synonyms.
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