It's a flipbook animation site created in 2016 by Poklik, and is popular. Unfortunately, there's many people who do not know FlipAnim exists. It's home to both good and decent-to-less artists. Also, Omeger.

the thing that you don’t have when you’re phones percentage is over 20

The most toxic drawing/flipbook animation site only second to DeviantArt, I use FlipAnim and I love it but there is a new drama every single week, there are so many newbies who will scream at you for “stealing a pose,” or because “someone said a bad word”.
It’s ridiculous but there are good corners of it full of wholesome, happy people. The site was made in 2016 by Polkik and it’s not that well known which is sad because there are some amazing pieces of artwork and some really smooth, pleasing animations. There are other things aswell as trends which one person creates and others can do on their profile. The pros outweigh the cons if you manage to find the good corner of FlipAnim, which isn’t that hard to find at all. It’s also a great place to make friends with the same interests as you, I personally have made a few great ones.