Pissing in a River Lyrics

Lyric discussion by captain murphy 

Cover art for Pissing in a River lyrics by Patti Smith

the song is about patti smith's lover. he went crazy and moved into the woods/mountains in colorado for 20+ years without telling anyone beforehand. he just packed up and left. it naturally drove patti smith insane

wow, I've never heard about it. Where is this infomation taken from?