Supposed "rock" music that is a contradition in and of itself. Music that is not about expressing the raw emotion or energy that is rock, but instead a kind of masterbatory limp sadness. Some of the best rock contains elements of sadness and helplessness, but honestly express their frustrations through modes of both melancholic somberness as well as ventilative "rocking out." Instead of regaining one's power through the "rock", "Wuss rock" does the very opposite and allows the crybaby whose girlfriend dumped him to continue crying into his perfume-scented pillow.
Is America becoming a nation of wusses with sensitivity training, frivolous lawsuits, political correctness, etc? It's a play on words from the PA Governor discussing the cancellation of a NFL Eagles Football game before the snow fell. Wuss was originally defined in the movie, "Fast Times at Ridgemont High" by Mike Damone. Look up youtube video for "Wussification Nation".