a)the sound that you make when riffing on a air guitar
b)the sound that your friends make after you get 100% on all solos on Rock Band
Rocker A- "Did you hear that riff man!?"
Rocker B- "YEA!! He was all WIDLEY WIDLEY WIDLEY!!!"
Rocker A- "DUDE!!! You just got through Green Grass and High Tides on EXPERT!"
Rocker C- "Cool, but what does Rock Legend mean?"
Rocker B- "It means you got 100% on BOTH SOLOS!!! You were all WIDLEY WIDLEY WIDLEY!!!"