When a group rises up and overthrows a government, it is sometimes called a putsch, or — more commonly — a coup.
This word shares a pronunciation with an informal term for dog, pooch, but there the similarity ends. A putsch is a quick and dirty overthrow of a government; it tends to be used most often for places that experience a lot of these. Putsch comes from the Swiss German word of the same spelling, which means "revolt," or "a sudden blow or push." Another word for a putsch is a coup d'état.