Boggle Overview. Boggle is a Hasbro word game that requires 16 letter cubes, the cube grid with dome, and a 3-minute sand timer, all of which should be. Define boggle: to be unable to think clearly: to be amazed or overwhelmed — boggle in a sentence. Define boggle: to start with fright or amazement: be overwhelmed; to hesitate because of doubt, fear, or scruples — boggle in a sentence.
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