Alternative form of put one's name in the hat

(idiomatic) To run in an election or to nominate oneself for consideration in some other selection process; to nominate someone other than oneself for such consideration.

Alternative form of throw one's hat in the ring

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.

(idiomatic) To become enthusiastic about something that is not yet guaranteed to happen.

If you don't have a lot of money, extend the life of what you have.

(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.

(idiomatic) To fall over (to fall from an upright or standing position to a horizontal or prone position).