ColboR is a gang that started in Racine,Wisconsin. Only a selected few are in this gang. The leader of colboR is Robloc a.k.a. big rob. Notice that Robloc is colbor spelled backwards. Robloc is the most feared member in the gang. Rumor has it that he once yelled at a McD lady for giving him the wrong order. He is known to carry a gat.He also is known quite well at the McD in this region for this is where his gang usually hangs out. Initiation: The initiation process to become a member of colboR is easy...all you have to do is shave your head.