expression, noun
king of the hill; king of the castle
Refers to a children's game where one person stands on a mound or high place and tries to stay on top while others try to push them off. Also used figuratively for someone who acts like a big shot in a small group.
子供たちが公園でお山の大将をして遊んでいる。
The children are playing king of the hill in the park.
彼は小
He acts like a big shot in his small department.