Idiom of the day - catch someone red handed Meaning: If you "catch someone red-handed," you've found them doing something they weren't supposed to do. Example: We caught Simon red handed, stealing from the till. If you'd like to practice using this idiom, please write back to me on this post with an example and I'll tell you if you're using it correctly :D Finally, if you're looking for a friendly and patient teacher please check out my profile. I look forward to meeting you. Thank you, Rianne :)