A pani puri is a small, crispy, hollow fried dough ball (puri) commonly found in Indian street food, filled with a mixture of spiced potatoes, chickpeas, onions, and a tangy flavored water ("pani") that is meant to be popped into the mouth whole, creating a burst of flavors and textures; it's also known as "golgappa" or "puchka" depending on the region.