guy 1: where's that music comming from?  guy 2: oh that's just ruj avalanching
the act of cruising around in a [chevy avalanche] with the mid gate down, the sun roof open, all the windows down, and the music blasting
"guy 1: where's that music comming from?  guy 2: oh that's just ruj avalanching" What is the definition of "avalanching"?