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Idioms and Phrases with boggle the mind

boggle the mind

Bewilder or astonish with complexity, novelty, or the like, as in The very magnitude of the Milky Way boggles the mind. The source of this usage is unclear, as the verb to boggle has several other seemingly unrelated meanings—to shy away, to hesitate, to bungle. [Second half of 1900s]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.