(idiomatic, US) To chat idly or generally waste time talking.

(idiomatic) To do work unnecessarily when it has already been done satisfactorily by others; to attempt to devise a solution to a problem when a solution already exists.

(originally nautical, informal) To learn the basics or master introductory knowledge. / (informal) To learn some skill requiring specialist knowledge.

A voting system where the candidate with the most votes (a plurality) wins, without any form of preference transfer.

(bingo) ninety

(intransitive, idiomatic) To cease clinging to life; to die. / (intransitive, idiomatic, figuratively) To quit; to cease functioning.

(informal) Legitimate; honest; upright.

(idiomatic) Changing before competitors. / (idiomatic) Above average; generally performing well.

(idiomatic, transitive, informal) To be attracted (sexually or romantically) to (someone); to fancy someone.

(idiomatic) barely; closely; by a narrow margin; with nothing to spare.