What does IFB mean on twitter?

Related questions

1. What is the difference between MRT and LRT in Singapore?
2. Does FF mean following?
3. Where do the eggs go after tubal ligation?
4. What is the meaning of LRT in the Philippines?
5. Is IFB good brand?
6. What is RF gun in SAP?
7. What does #ff mean?
8. What is an IBF in texting?
9. What happens to eggs when tubes are tied?
10. What is FOH on twitter?

Tags

1. #people
2. #saying
3. #about
4. #other
5. #website
6. #radio
7. #tweets
8. #twitter
9. #retweet
10. #frequencies
11. #cuing
12. #stands
13. #range
14. #requires
15. #everyone
16. #interference
17. #often
18. #instagram
19. #hashtag
20. #blacktwitter
21. #follow