A person who is eccentric or crazy.

एक व्यक्ति जो विचित्र या पागल हो।

English Usage: The old man was known as a bats-in-the-belfry by the neighborhood children.

Hindi Usage: बूढ़े आदमी को पड़ोसी के बच्चों द्वारा पागल समझा जाता था।