Hamzah means strong and/or steadfast in arabic. People usually associated with it are strong willed, have a unparalleled sense of humour, are generally quite modest.
They are usually wanted by the ladies, but generally due to their muslim upbringing tend to flirt, instead of presenting them with their rather large fun stick.
Dude 1: Man that guy's a right Hamzah, he gets all the chicks but doesn't nail them,
Dude 2: I know man! He's definitely going to be a comedian!
Dude 3: He's like the brown Chuck Norris!