catch someone red-handed

(verb) to catch someone doing something bad

Example Sentences:

I think my girlfriend is cheating on me, so I plan to follow her and catch her red-handed with another man.

Bob was mad because he kept catching his roommate red-handed. His roommate is stealing his food!

The father was furious when he caught his son red-handed, smoking a cigarette.

Media:

Similar idioms:

1. bust
2. catch someone off guard
3. catch on
4. roll out the red carpet
5. hold it against someone
6. caught with your pants down
7. red-letter day
8. plan B
9. like father, like son
10. see red
11. back-up plan
12. catch some rays
13. paint the town red
14. food for thought
15. show-off