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.
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.
by Cap'n Awesome August 11, 2006
 Get the Do a barrel roll!mug.
Get the Do a barrel roll!mug. A command spoken by Peppy Hare in Star Fox 64.
An expression for what seems to be the solution to almost every impossible situation (in other words, a way of saying there is no solution.)
An expression for what seems to be the solution to almost every impossible situation (in other words, a way of saying there is no solution.)
Okay, so... You're in a dark room, no lights, no escape, and 3 rabid werewolves on the loose. How do you get out of THAT?" "Do a barrel roll!
by mybrassisbiggerthanyourss January 22, 2011
 Get the Do a barrel rollmug.
Get the Do a barrel rollmug. The answer to all your problems.
by DuskL September 9, 2009
 Get the Do a Barrel Rollmug.
Get the Do a Barrel Rollmug. An infamous line said by the Star Fox character, Peppy Hare, in the Nintendo 64 game, Star Fox 64. When typed into Google, the screen will spin around once, referencing the line.
"Do a barrel roll (Z or R twice!)"
by Awesome343 December 31, 2017
 Get the Do a barrel rollmug.
Get the Do a barrel rollmug. The single most used phrase among gamers. 
Spoken by Peppy Hare in the game Star Fox for SNES and more famously in Star Fox 64.
Spoken by Peppy Hare in the game Star Fox for SNES and more famously in Star Fox 64.
by Barrelrollmaster December 30, 2008
 Get the Do a barrel rollmug.
Get the Do a barrel rollmug. In Star Fox for the SNES Pepper Hare would ask of you to do a barrel roll. Doing a barrel roll in Star Fox is to press the shoulder buttons twice, pressing L shoulder button  then L again would make the R-wing do a barrel roll counter clockwise, pressing the R shoulder button then R again would make the R-wing do a barrel roll clockwise.
utlizing a barrel roll is extremly usful in Star Fox as it deflects most objects fired at the R-wing
The term "Do a barrel roll" is commonly mistaken that it froms from Star Fox 64. It did not. But it was spoken by a voice actor for Peppy Hare in Star Fox 64. In Star Foxes training mode, the game would give you simple tasks. Eventually 3 other R-wings would fly around as you were told to do the same as them, after sometime before the 3 other R-wings would barrel roll Peppy would tell you to do a barrel roll.
utlizing a barrel roll is extremly usful in Star Fox as it deflects most objects fired at the R-wing
The term "Do a barrel roll" is commonly mistaken that it froms from Star Fox 64. It did not. But it was spoken by a voice actor for Peppy Hare in Star Fox 64. In Star Foxes training mode, the game would give you simple tasks. Eventually 3 other R-wings would fly around as you were told to do the same as them, after sometime before the 3 other R-wings would barrel roll Peppy would tell you to do a barrel roll.
Peppy: Do a Barrel Roll! (text only)
(The player decides if they want to do a barrel roll)
Guy 1: You should do a barrel roll...
Guy 2: Dude, shut up!
Guy 1: Ha you died, only if you would have done a barrel roll!
Guy 2: I'M NOT PLAYING STAR FOX!!
Guy 1: Oh yea, sorry.
(The player decides if they want to do a barrel roll)
Guy 1: You should do a barrel roll...
Guy 2: Dude, shut up!
Guy 1: Ha you died, only if you would have done a barrel roll!
Guy 2: I'M NOT PLAYING STAR FOX!!
Guy 1: Oh yea, sorry.
by Pro def July 1, 2007
 Get the Do a barrel rollmug.
Get the Do a barrel rollmug. The controversial quote Optimus Prime is going to say in the upcomming Transformers Live Action Movie. The quote was submitted into the "Make Prime Speak" Contest and is currently by far, holding first place (Thanks to the YTMND Community) among a myriad of other crappy submitted quotes.
Some Flying Transformer Dude: OH NOES!!! I'M UNDER HEAVY FIRE!!!
Optimus Prime: Do a barrel Roll! lol
Optimus Prime: Do a barrel Roll! lol
by SamuraiSilhouette October 23, 2006
 Get the Do A Barrel Roll!mug.
Get the Do A Barrel Roll!mug.