It has two definitions, it's either a guy with a charming personality and smart wit or it's a guy who is either always overdosing or always underdosing. They probably are hyper all the time and are a piece of work(hence the name). They are, usually speaking,
batshit crazy in a good way.
PS: There is always one in a friend group.
-Man did you see
Ata yesterday, he was through
the fucking roof!
-Yeah, that's Gods Prime Time being Gods Prime Time.