Dubstep is a genre of electronic dance music that originated in south London, United Kingdom. Its overall sound has been described as "tightly coiled productions with overwhelming bass lines and reverberant drum patterns, clipped samples, and occasional vocals"
a human who can create dub step using only theirself, its kind of like a beatboxer but they're doing it dubstepstyle
Friend 1: Did you hear about that guy who won Britains Got Talent?
Friend 2: No, what about him?
Friend 1: He's also a dub stepper!
Friend 2: No way! Thats awesome, what's his name again?
Friend 1: Jai McDowall I think