1.Star Truck is a Animaniacs spoof of a popular 60's tv show called Star Trek.
2. Star Truck is the name of a SciFi network on internet with broadcasters dedicated to bringing popular Scifi programs to the fans of them. Many affiliated channels have sprung up since it's conception therefore forming the Network.
Viewers of the Star Truck SciFi network are often referred to as Trukkers or Truckers.