fall on one's sword

Etymology
Refers to the practice of some Roman military leaders, who would commit suicide following a devastating defeat by literally falling on the point of their own swords.

Verb

 * 1)  To resign from a job or other position of responsibility, especially when pressured to do so.
 * 2)  To voluntarily take the blame for a situation.
 * 1)  To voluntarily take the blame for a situation.
 * 1)  To voluntarily take the blame for a situation.
 * 1)  To voluntarily take the blame for a situation.
 * 1)  To voluntarily take the blame for a situation.