What is "assjack"

Assjack are an American rock band led by Hank Williams III and Garrett Bremer. Assjack is one of the three features of Williams' live show, and they started off playing psychobilly material throughout 2008 to 2010, until they evolved into a strictly metal/punk band.

Assjack is the self-titled debut album from hardcore punk/ heavy metal band Assjack. It was released on August 4, 2009. Lead singer Hank Williams III performed, wrote and produced the album on his own from his home studio in Nashville, Tennessee.