Crossword clues for the word: HAREBRAINEDIDEA The word HAREBRAINEDIDEA has appeared as an answer to at least 12 crossword clues on different crossword puzzles. Crossword clues for HAREBRAINEDIDEA Showing 1 to 12 of 12 results Clue(s) "Sitcom episode premise, often" Bozo's suggestion Crazy notion It will waste the boss' time It's highly unlikely to work It's so crazy it just might work Nutty thought Preposterous notion Scorned notion Wacky notion Way-nutty option What human flight was once thought to be