He said it in Dazed and Confused. He said it at the Oscars. He's even selling T-shirts. But where did Matthew McConaughey's catchphrase, "Alright, alright, alright," come from?

In a 2011 interview on Canadian talk show George Stroumboulopoulos Tonight, McConaughey explained how he crafted the line in the seconds before his first-ever movie appearance. It may have started as straight lift from The Doors, but now it's taken on a life of its own.

It's also one of the few precious memories McConaughey has left from before he completed his transformation into Rust Cohle.

[H/T: Tastefully Offensive]