The term SIMPLE GUY can be broken down into two crossword solutions: IDIOT (5 letters) and SIMON (5 letters). IDIOT is a derogatory term used to describe someone who is foolish or lacking in common sense. SIMON is a popular name of Hebrew origin, meaning 'he has heard'. Together, these two words form the phrase SIMPLE GUY, which is often used to describe someone who is naive, unassuming, and easy to please.