They are many things.
1. A person who hasn't touched grass since they were born.
2. A person who probably would do ANYTHING to entertain their viewers.
3. A person who thinks mouthing random songs is a skill.
4. A person who is most likely cringy.
5. A person who anyone would kill for free, unless they make memes.
6. If they make memes, they are not numbers 1-4, they are good people.
That's about it.