To make the utmost effort; to contribute, using all of one's abilities and resources. / (idiomatic, euphemistic) To lose one's life while making the utmost effort with full commitment.

(euphemistic) To die, especially to be killed during involvement in an activity or in some other undertaking.

Alternative form of fire in the belly

Not suitable for one in one's current rank in an organization; suitable for someone more senior, implying that one is not competent enough or not paid well enough to deal with the problem.

(literally) To make the bed in which one has slept. / (idiomatic) Alternative form of make one's bed and lie in it

Eggcorn of rack one's brains.

Alternative form of rack one's brain

Eggcorn of rack one's brain.

Used other than figuratively or idiomatically: see one, too, many. / (idiomatic) One or more servings too many of alcohol, leading to drunkenness.

(idiomatic, intransitive) To stay calm facing nervousness.