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A freestyle competition between multiple people in which participants provide they're hardest dub (dubstep) using their mouth.
"WOBWOBWWWWWWWWAAAAAAAAA" Hard dub man, hard.

"WUBWUBWUBWUB'' Thats some filthy shit.

Grandad says to Grandson : I remember my first dub off.

''WUBWUBWAWAWAWOBWOB'' What the fuck is this kid on?
by SinccaL December 17, 2012
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