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

1.
누군가의 머리를 날려버리다, 머리에 총을 쏴 죽이다
to kill someone by shooting them in the head
:
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He threatened to blow someone's brains out if they didn't comply.
그는 따르지 않으면 누군가의 머리를 날려버리겠다고 위협했다.
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The villain swore he would blow someone's brains out if his demands weren't met.
악당은 자신의 요구가 충족되지 않으면 누군가의 머리를 날려버리겠다고 맹세했다.