It Follows

A horror movie about a sexually transmitted ghost that can take the form of anyone or anything it wants. It tries to kill you if you were the last person to receive it. Once the stg (sexually transmitted ghost) kills you it will go after the person who gave it to you then the person who gave it to them and so on and so on.

When some small bitchboy slides into your dms asking for a follow back

Saying that you will follow anyone who follows you for the sole purpose of increasing the number of followers you have in an attempt to appear more popular. This tactic is mainly used by middle-aged adults on tiktok who do not possess the ability to create relevant or humorous content and dream of the days when they had thousands of "friends" on Myspace. They have no idea how ridiculous their account looks with 10,000 followers and only 30,000 likes.

Some small bitchboy slides into your dms and asks you to follow back
More commonly known and stands for FFF

Something only dickheads use.

Fake ass people who tend to follow every trend. These people tend to live a fake life because they have lost their own identity.

Follow for follow is mostly used in instagram, it means if someone follows you you follow them back