Idiom of the day - Bad egg Meaning: A person who is bad or dishonest. Example: I'm glad you ended things with Tom, he seemed like a bad egg. 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, my trial lessons start at $6. I look forward to meeting you. Thank you, Rianne :)