“The word is derived from a unit in Warcraft III, the gyrocopter (flying machine). Your immediate response when someone masses gyros (to be funny, ruin the game, mess around or whatever) is to rofl for ten straight minutes until the copters of doom and destruction have pinpricked 1 of your 20 farms to death with their uber godly bombs.”

Its turning into a huge Internet icon. You can go and visit some ASCII Art here.. in additon there is a game with some pretty cool music from Top Gun.

Go check it out!