백발백중

baekbalbaekjung [백빨백쭝]

백발백중이 · 백발백중을

hitting the mark every time, never missing

Example

그 사람의 예측은 늘 백발백중이에요.

That person's predictions are always spot on.

Word parts

백 hundred발 shoot백 hundred중 hit

Literally 'a hundred shots, a hundred hits'.