Alternative form of show one's true stripes

(colloquial) tired to the point of exhaustion, but still awake and out of bed

(Scotland, idiomatic, dated) To bother oneself; to worry about something.

(idiomatic) To eat heartily. / (idiomatic) To perform at a high level in one's official role.

(idiomatic) Standing erect but not consciously aware of one's surroundings, or only minimally aware, and having little or no ability to control one's bodily actions, as a result of physical injury or exhaustion.

(transitive, idiomatic) To desire with intensity and commitment, to earnestly long for.

(UK, idiomatic) To earn money, to do something as a job.

(idiomatic) To drink a beverage. / (idiomatic, gangster slang) To take one's share from the financial proceeds of illicit activity.

(slang) To expend all of one's resources or efforts; to express all the arguments or ideas which one has. / (slang) To spend all of one's money. / (slang, vulgar, of a man) To ejaculate.

(US, slang) One is doomed (used as a threat).