j-town was at the park, ballin up on some fools, when his friend, k-while, asked if he wanted to run some 2 on 2
the state of dominating in either basketball or sometimes football
"j-town was at the park, ballin up on some fools, when his friend, k-while, asked if he wanted to run some 2 on 2" What is the definition of "ballin up"?