2. Slang for muscular male who does a lot of "juicing," ie. uses steroids heavily, but denies it when questioned. "Ro" alludes to robot or machine (see Arnold Schwarzenneger as The Terminator);
Dave: You seen how big Mike's gotten? Must have put on 50 pounds of muscle...
Chris: Yeah, but how'd he do that in three months
Dave: He says that all he did was train naturally all summer.
Chris: Bullshit..., that guy's been using more juice than Robek's.
That "Robek"-mutha fucka trying to play it off like its just normal growth