What is L Is Real?
Believed to be the inscription on the Star statue in the videogame Super Mario 64. Those who staunchly believe that Luigi was somewhere in the original Mario 64 often point out this inscription, saying it was placed there by the designers of the game as a hint.
Lamer: Dude, check out that inscription on the statue!
Dude: It's a blurry box of text. So what?
Lamer: It says L is Real! That means Luigi is somewhere in the game!
Dude: See what you want, it's just a blurry box of text.