Overall its a justifiable excuse for when you do something completely amazing or really stupid. From passing an exam to accidental setting your house on fire due to the fact that you didn't catch that last flaming chainsaw.
Guy 1: "Dude how did you score with mandy last night?"
Guy 2: "Because I'm Batman!!"
Officer: "Sir do you know how fast you were going?"
Guy 3: "It doesn't matter how fast I was going because I'm Batman!!!"
Usually mario style four player games fall into this category. Basically it means a videogame where you can usually screw over your friends by killing them or getting a large amount of points in a short time.
Regis- "This why I don't play with you guys when it comes to these friend breaker games." As she watched tom playing as mario throw her character off a cliff before the finish line.
Tom- "These things things just happen you know. And I owe you for using me as a jump platform to escape the lava.