out for blood

out for blood

Seeking vengeance or retribution in an especially hostile or belligerent manner. This phrase is often used hyperbolically, although it can refer to physical violence. I'd avoid the boss if I were you—he's been out for blood ever since the Van Hausen deal fell through. Some neighborhood kids beat me up last night, and now my brother is out for blood.
See also: blood, out
Farlex Dictionary of Idioms.

out for blood

Fig. aggressively seeking to harm or get revenge; angry and looking for the cause of one's distress. The opposite team is out for blood, but we have a good defense.
See also: blood, out
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

out for blood

1. If someone is out for blood, they are trying to find someone to blame and punish for something bad that has happened. We're not out for blood, we're out for justice.
2. If people are out for blood, they are violent and want to attack someone. There were gangs of men in the city centre and they were out for blood.
See also: blood, out
Collins COBUILD Idioms Dictionary, 3rd ed.
See also:
  • be out for blood
  • be out for/after (one's) scalp
  • scalp
  • (one's) head on a plate/platter
  • be a fate worse than death
  • beat off
  • and his mother
  • chance of a lifetime
  • can't get over (something)
  • can't get over something