The term 'Nutty as a Fruitcake' is an idiom used to describe someone who is eccentric or crazy. The crossword solutions for this term are BATTY (5 letters), BATS (4 letters), and LOOPY (5 letters). All three words can be used to describe someone who is acting in an irrational manner. BATTY means crazy or insane, while BATS implies a person is out of their mind. LOOPY is another word for crazy or foolish. Together, these three words provide a vivid description of someone who is nutty as a fruitcake.