The text is a play on the term 'Information Superhighway' to refer to the internet (Infobahn is a play on 'Autobahn', the German highway system), and 'roadkill' typically refers to animals hit by vehicles on the road. The pun is created by humorously combining the concept of working hard on the internet with the idea of becoming 'roadkill', as if one could be figuratively run over by the fast pace of digital information.
Working hard to become roadkill on the Infobahn .