What does the idiom a red herring mean?

Related questions

1. What is the most important toe?
2. Is it bad to crack your back everyday?
3. What does have a patch mean?
4. What is the space between your knuckles called?
5. What does the idiom sit on the fence mean?
6. Does cracking your knuckles harm you?
7. What does worming mean?
8. Do knuckles get bigger when you crack them?
9. What are foot knuckles called?
10. Do your knuckles get bigger when you crack them?

Tags

1. #scent
2. #fable
3. #issue
4. #across
5. #dictionary
6. #question
7. #drawing
8. #again
9. #dried
10. #phrase
11. #idiom
12. #salted
13. #meaning
14. #destroys
15. #drawn
16. #brewer
17. #hounds
18. #attention
19. #herring
20. #gives
21. #divert
22. #smoked