A description of someone who is really hip-hop and totally hot on the street. This can be someone who is a really hard gangster. If you are really pop you don't need to worry about paying for a bus because you get on free.
Derick: Yo yo yo mate, how are you?
Hard Harrold: Orite man, i am great. Im really pop right now, you know?
Derick: Oh cool you must get free public transport then?
Hard Harrold: Stop it little Derick.