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It's just dubstep. Wub is common electronic sound in Dubstep similar to unts.
Wubwub's my medicine.

I've just put some new wubwub from Flux to my iPhone.
by wueej February 09, 2012
The amazing brain melting sound you hear while listening to dunstep!
"wub wub wub wub" "dude my brain just melted" XD
by dubstepman February 28, 2011