This is all delivered with the sensibilities of a professional wrestling match. Children of the 80s will instantly recognize Mr. Torgue as a clear reference to "Macho Man" Randy Savage, and the plot twists are narrated with the breathless, feigned surprise you'd hear from WWF announcers. It was a decent parody, though I admit that I may have missed a gag or two that relies on more knowledge of the wrestling world.
But like a good pay-per-view event, the spectacle requires heroes and villains. The hero, the Vault Hunter(s), is thrown into the middle of the action without much agency. The villains are grotesque in appearance and personality. They're described as doing awful things to make them more worthy of our contempt. They cheat as a matter of course, and every match has the underdog severely outgunned by his or her opponent.
The plot centers around becoming the #1 ranked badass on Pandora. Mr. Torgue has his own list of who counts as a badass, and whether you've completed the game or not your name to him is mud. To rise the ranks, you'll have to take out the others who are ahead of you: countless standard enemies, and a bevy of bosses.
That's not to say that the DLC is just a series of boss fights. This is actually a proper campaign from start to finish, consisting of several quests, new enemies, appearances from familiar characters like Moxxi and Tiny Tina, and a handful of large environments. The critical path can last around three hours, but several side quests dot the landscape.
Piston will be your sponsor, if he doesn't stab you in the back first