Noun
(chiefly US) An event, particularly on radio or television, showcasing the talents of amateur performers.
(chiefly US, idiomatic) A situation or activity in which the participants show a lack of skill, sound judgment, or professionalism.
Source: en.wiktionary.orgYour performance depends on your people. Select the best, train them and back them. When errors occur, give sharper guidance. If errors persist or if the fit feels wrong, help them move on. The country cannot afford amateur hour in the White House. Donald Rumsfeld