blow (one's) brains out(redirected from blow my 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.
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.
blow one's brains out
Shoot oneself in the head, as in Blowing one's brains out is more a man's type of suicide; women lean toward poison. [Early 1800s]