[TOMT][TV Show] Cartoon about these guys with a giant robot in a junkyard

It was a cartoon from sometime in the early or mid 2000s about these two dudes in some kind of scrapyard who piloted this big robot mech thing. I think the robot had blue legs with a flaming 8-ball or something similar painted on it. I'm pretty sure one of the guys was a little fat, but I could be wrong. I don't remember what channel it was on, but I think it was either Cartoon Network or Disney.