(idiom) to hold a position while doing no work; to neglect one's duties while enjoying the benefits of office

To hold a high position and receive a salary without fulfilling one's duties; to lead an idle life while being supported by others.

To occupy a high position and receive a salary while doing nothing for the public interest; to hold a post without being worthy of it.

To hold a high position and receive a salary without actually doing any work; to occupy a post without fulfilling its responsibilities.