A word some gamers say when they are at a loss for words or don't know what else to say. This phrase originated from star fox, but has been so overused it has no meaning.
This is what you say when someone asks you for importantadvice in their life.
Your friend: "Last night I lost everything. My girlfriend dumped me, I lost my job and I'm starting to lose my grip on reality. What should I do, man?"
You: "Do a barrel roll!"
By Carena
Do A Barrel Roll
Famous line in gaming culture, originating in the Star Fox franchise. The line is commonly associated with the character "Peppy", due to his tendency to instruct the player to perform the maneuver, commonly when a scripted ambush or similar event is occurring. Due to his insistence upon suggesting that Fox "Do a barrel roll!" in so many situations, it has come to be parodied as a panacea for all problems.
Comes from Starfox 64. A character would command fox to do a barrel roll in order to prevent being shot to deadness.
A barrel roll is when a fighter pilot makes his ship turn over, very quickly, in mid-air. It makes the wings harder to hit.
It's more common practice to shout this phrase at friends while they play video games. Especially if they can't do anything roll-like. The purpose is to be obnoxious, and quote old video games. Two of most peoples' favorite things.