simple past tense and past participle of one-up

Used other than figuratively or idiomatically: see on, one, knee. / (idiomatic) At the mercy of someone.

The number 1,000,000.

(slang) obsession with a particular person who is idealized as the only right one to date or to marry, often without any actual relationship developments.

(slang, intransitive) To break wind.

(Ulster) An unpredictable person.

plural of follow-on

(idiomatic) extremely desperately

(of vocalizing) In unison, together / (idiomatic, by extension, of expressing opinions by members of a group) In a mutually agreeing or like-minded manner; concordantly, unanimously.

(idiomatic) In one's opinion, from one's point of view.