catch someone red-handed
US /kætʃ ˈsʌm.wʌn ˌredˈhæn.dɪd/
UK /kætʃ ˈsʌm.wʌn ˌredˈhæn.dɪd/

1.
현행범으로 잡다, 딱 걸리다
to discover someone in the act of doing something wrong or illegal
:
•
The police caught the thief red-handed as he was trying to break into the car.
경찰은 그가 차에 침입하려 할 때 도둑을 현행범으로 잡았다.
•
My mom caught me red-handed eating cookies before dinner.
엄마가 저녁 식사 전에 쿠키를 먹고 있는 나를 현행범으로 잡았다.