What does FF mean in social media?

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Tags

1. #texting
2. #messaging
3. #social
4. #blogs
5. #instant
6. #abbreviation
7. #friday
8. #means
9. #newsgroup
10. #media
11. #shorthand
12. #message
13. #postings
14. #acronym
15. #follow
16. #jargon
17. #online