peerless person; unrivaled talent
A yojijukugo describing a person of such outstanding ability that no one in the country can match them. Often used in historical or literary contexts.
He is truly a peerless person.
thirteen orphans (mahjong)
In mahjong, a yakuman hand consisting of one of each terminal and honor tile plus one extra copy of any of them. The name borrows the yojijukugo to suggest an unbeatable hand.
Thirteen orphans is especially rare among yakuman hands.