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Similar to air guitar but with an iPod in one hand, headphones in, the other hand moving like playing a guitar. Because nobody else can hear the music, they look a bit more than stupid.
Person 1: "What the hell is he doing?"
Person 2: "I dunno, he looks a bit daft"
Person 3: "He's iGuitaring!"
by Mondaydeath April 30, 2010