Wub wub wub, nehnehweeh, YOI YOI YOI WAHBWUHB
The sounds of dubstep, a genre in electronic dance music. Pretty popular on the internet, so now and then you run into these onomatopoeia. Oonse or untz is an onomatopoeia imitative of the repetitive beat in rave music. Dubstep is newer than rave, therefore 'wub is the new oonse'.
Dubstep | Know Your Meme: "signature repetitive bass"
Dubstep by Datsik
dubstep beatboxer