Throwing up the banner [amy]

This weekend my brother came up with a new catch phrase.

Example:

"Have you studied for your midterm yet?"
"Naw, I just decided to throw up the banner and call it a day."

or maybe

"I thought you were trying to save up for a car?"
"Yeah, but then I saw this scooter. It was shiny. And totally worth it."
"No one rides scooters anymore..."
"...totally... worth it..."
"Way to throw up the banner dude."

All the kewl kids are using it.
Or will.