"Nutty" is a term often used to describe someone who behaves in a way that is eccentric, silly, or irrational. It can refer to actions that seem out of the ordinary or thoughts that are unconventional. While it can be used playfully among friends, it may also carry a negative connotation when referring to serious mental health issues. In popular culture, characters labeled as "nutty" often provide comic relief, showcasing quirky traits that make them memorable. Examples include cartoon characters like SpongeBob SquarePants or The Mad Hatter from Alice in Wonderland, who embody this whimsical and unpredictable nature.