Simple Simon Definition
noun
A foolish character in a nursery rhyme.
Webster's New World
A fool, or gullible person.
The President merely showed he is a Simple Simon.
Wiktionary
Other Word Forms of Simple Simon
Noun
Singular:
Simple Simon
Plural:
simple-simonsOrigin of Simple Simon
After Simple Simon , a character in a nursery rhyme
From American Heritage Dictionary of the English Language, 5th Edition
from the nursery rhyme of the same name.
From Wiktionary