Idiom of the day - as fit as a fiddle Meaning: very healthy; physically fit Example: John is almost 75 years old and he still goes to the gym 3 times a week. He's as fit as a fiddle. 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 :)