Slang Meaning Good or cool, Comes From The Dungeons And Dragons Campaign Setting "Red Steel", Where Wheel-Lock Guns are Rare and Only Carried and Used By the Rich and The Famous (or Infamous).
Person 1: "Yo! I Finally Got A New Stereo Put In My Car"
Person 2: "Really? That's Wheel-Lock"
Person 1: "Yeah, Totally Wheel-Lock"