Wonky: pronunciation [wong-kee] –adjective, -ki•er, -ki•est.

1. British Slang.
a. shaky, groggy, or unsteady.
b. unreliable; not trustworthy.

2. Musical flavour - *not* a genre - transcending multiple scenes in summer 2008, characterised by an outbreak of unstable midrange synths.

As summer 2008 approaches, a theme emerges across myriad existing genres: the mid-range is being hijacked by offkilter synths that are about to explode. Crossing hip hop, hyphy, grime, chip tunes, dubstep, crunk and electro, one flavour unites a network of exciting sounds. Wot do u call it? Wonky.

http://www.pitchforkmedia.com/article/feature/50284-the-month-in-grime-dubstep