The term "batty" is an informal adjective used to describe someone who is considered crazy or eccentric. It often implies a playful or lighthearted sense of madness rather than a serious mental illness. People might use "batty" to describe quirky behavior or unusual ideas that are harmless and amusing. In popular culture, characters labeled as batty often add humor and unpredictability to stories. For example, in movies or books, a batty character might come up with wild schemes or exhibit odd habits that entertain others. This portrayal can highlight the charm of being different and the joy of embracing one's uniqueness.