blow your/somebody's brains out

blow (one's) brains out

slang To fatally shoot someone in the head. Ray blew the informant's brains out, just as the boss told him to.
See also: blow, brain, out
Farlex Dictionary of Idioms.

blow someone's brains out

Sl. to kill someone with a gun. Careful with that gun, or you'll blow your brains out. Max was so depressed that he wanted to blow out his brains.
See also: blow, brain, out
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

blow your/somebody’s ˈbrains out

(informal) kill yourself/somebody by shooting in the head: He was so depressed about his debts that he wanted to blow his brains out.
See also: blow, brain, out
Farlex Partner Idioms Dictionary
See also:
  • blow (one's) brains out
  • blow brains out
  • blow one's brains out
  • blow someone’s brains out
  • do someone or something justice
  • go through someone like a dose of salts
  • do a job on someone From do a number on something.
  • ain’t 1
  • have a head
  • helluva someone/something