(idiomatic) To concentrate on one's own tasks, affairs, area of expertise, etc., especially in order to avoid distraction, embarrassment, or other needless problems.

(idiomatic) To refrain from speaking; to be silent.

Alternative form of hold one's peace

(idiomatic) To eat, especially in a hearty or greedy manner.

(informal) To eat.

Alternative form of put one's affairs in order

A slap. / (idiomatic, figuratively, by extension) A display of disrespect or scorn.

(idiomatic) To commit a murder in order to be respected in a criminal gang. / (idiomatic, by extension) To establish one's bona fides; to establish status and respect.

To acquire recognized credentials by competent performance.

(idiomatic) To do one's share of a job.