It is to be so consumed with hatred, rage, and/or bitterness and yet feel so helpless because of the restraints of the man that bile flows out your liver and up your esophagus and floods your mouth, choking or drowning you while your face contorts in a rictus of agony.
Curiously, the ancient feudal Japanese had a form of ritual suicide just for this occasion; suicide you can commit to protest the foulness of an untouchable enemy. Now *that's* Karma!