"Sound of White Noise" and How... well, Read It

OH AND I CAN THINK WITH MY DICK AND IT CAN SHOUT ...
....what did that line mean anyway?
 
You think with the little head but it can't speak - Agressive racists think with the little one and are morons.

picture this a limp dick white boy fan calling blacks my pals and he dresses like he's from a balck neighborhood and says homes, etc.