Tera dimag kharab ho gaya is a common Hindi phrase used in everyday speech to call out nonsense in a joking way, long before it became a shareable audio clip. Short voice notes like this spread through WhatsApp groups and status videos, where a familiar line can be forwarded, saved to soundboards and reused out of context. Its popularity comes from that shared recognition: no setup is needed, the meaning is clear to Hindi speakers, and the short length fits reaction culture in chats, reels and memes.