Simple Simon

From the nursery rhyme of the same name.

Simple Simon (plural Simple Simons)

1. A fool, or gullible person.
   • 2003, Margaret Sanger, Michael W. Perry, The Pivot of Civilization in Historical Perspective, page 188:

     Now, will your kind of birth control select out specially for suppression the Simple Simons, the Peeping Toms, the Dumme Lisas? Oh, no, indeed.

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