A group of white kids who think their cool because they listen to rap music and they travel in a group of like 11 people and pick on smaller kids and smoke weed.
Jockin on yo bitchass is a line in rapper Soldja Boy's song "Crank Dat". It refers to a dance made famous by rapper Yung Joc on the song "Its Going Down" called the joc. Also called the motorcycle.
I'm jockin on yobitchass, and if we get to fightin then I'm cockin on yo bitchass.