The internet's greatest export.
The idea is, taking clips from old video game-related cutscenes and shows and splicing them together. They don't have to make sense, but they're much funnier if they do.
Examples? Okay!
Mama Luigi Seeks Medical Assistance
What is Spaghetti?
Epileptic Poop Nuggets
Mama Luigi is a Nuclear Weapon
Mario's Retarded Brother Luigi
Some are musical, even!
Stay Here While I Bash Koopa Football Players
Ganon Hates Grating Cheese