FF is an abbreviation for “Follow Friday”, a term that is widely used on a few social media platforms, including Facebook and Twitter.
Though there are various meanings of FF acronyms whose origins aren’t clear, that’s the beauty of the internet.
In an email, FF is used to mean friends forever when sending a friendly email to your bosom friend. It’s an internet slang you both use to communicate.
Twitter and Facebook users usually have a day per week to express their internet love to their social media friends and fans. It’s a day set aside basically for this purpose.
A proper way to do an FF post on Twitter is to send personal FF tweets.