(chiefly Britain, idiomatic) To remain cheerful; keep smiling.

(idiomatic) Synonym of get someone's back up: to annoy someone.

(idiomatic) To annoy or anger someone.

(idiomatic) To raise one's clenched fists in front of one's body and stand in a threatening or defiant manner, in preparation for a fistfight.

(idiomatic) To deal with the minor consequences of a previous action; to tidy up, finish, or complete.

(idiomatic) A surprise advantage of which others are not aware.

(idiomatic, obsolete) To finish a job.

To listen attentively.

(idiomatic, US, informal) Often in the infinitive or imperative: to face reality and stop deluding oneself.

(idiomatic, intransitive) To prepare oneself for something demanding.