Top Bloak, commonly used more in Europe, meaning that your a good guy, always dependable and a great and responsible friend that wont leave you when your in some trouble but stays with you and faces it.
A top cunt is rather on the other hand a general asshole that is the exact opposite of a friend and it more like an enemy than a pal.

When some little bitchboy is acting like a little tiny pee pee poo poo baby and messing up the group plans.