A situation in which confusion arises due to homophones and similar misunderstandings.

plural of Who-athon

plural of who's on first

A sentry's challenge to an intruder.

Expressing surprise, or ironic lack of surprise, upon learning something.

Alternative form of whoso

(politics) Who will defeat or dominate whom? A Bolshevist principle or slogan, urging action against the capitalists.

According to whose authority (especially in defiance) / Nobody knows; it is difficult to judge

Person or entity whose name one does not want to mention but which is known to the person to whom one is speaking.

Alternative spelling of you-know-who