an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
golf slang for "play a hole one under par," 1956, earlier bird (1911), from bird (1) in Amer.Eng. slang sense of "exceptionally clever or accomplished person or thing" (1839).