blow someone's brains out
US /bloʊ ˈsʌm.wʌnz breɪnz aʊt/
UK /bloʊ ˈsʌm.wʌnz breɪnz aʊt/

1.
把某人的腦袋打爆, 開槍打死某人
to kill someone by shooting them in the head
:
•
He threatened to blow someone's brains out if they didn't comply.
他威脅說,如果他們不服從,就會把某人的腦袋打爆。
•
The villain swore he would blow someone's brains out if his demands weren't met.
惡棍發誓,如果他的要求得不到滿足,他就會把某人的腦袋打爆。