Meanings
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.
How to pronounce "fall on one's sword":
AU
Used other than figuratively or idiomatically: To commit suicide by allowing one’s body to drop onto the point of one's sword.
To resign from a job or other position of responsibility, especially when pressured to do so.
To voluntarily take the blame for a situation.