king of the castle

Noun

 * 1) A children's game in which one player is located on something elevated and other players attempt to take his or her place.
 * 2)  A person who assumes a position of greater importance, authority, or prominence than others.
 * 3) * 1983 April 30,, "Enmity, Torment, Adversity" (review of Voices: A Life of Frank O'Connor by James Matthews), New York Times (retrieved 3 Jan 2019) :
 * Mr. Matthews, usually nonjudgmental when writing about O'Connor's domestic relations, can't resist calling him "the king of the castle, the smug possessor of a bevy of three fine women absolutely de-voted to him."
 * Mr. Matthews, usually nonjudgmental when writing about O'Connor's domestic relations, can't resist calling him "the king of the castle, the smug possessor of a bevy of three fine women absolutely de-voted to him."

Synonyms

 * See Thesaurus:important person
 * See Thesaurus:important person