Doubling, Is the act of using two musical devices with loudspeakers, such as mobile phones, to double the sound, giving the effect of surround sound, first used by tom and sean in macclesfield, england, to create louder music..
This can also be used with any amount of musical devices
Hey, Sean, Lets Go doubling with bonkers.... OK!!
Turn that Cr*p Down, Shouts the old lady next door!