Erupt

verb

1. To eject something violently (such as lava or water, as from a volcano or geyser).

   "The volcano erupted, spewing lava across a wide area."

2. To burst forth; to break out.

   "The third molar tooth erupts late in most people, and sometimes does not appear at all."

3. To spontaneously release pressure or tension.

   "The crowd erupted in anger."