When We Were Young Lyrics

Lyric discussion by Forrykook 

Cover art for When We Were Young lyrics by Roger Waters

One of the lyrics sites has the other 2 repeated spoken lines as: (Trunks, dripping slowly into the gutter and the floor. Canopy's stretched black...) and (You could, I could, it's invisible...)

I can't figure out the meaning of these. "Canopy's stretched black sounds like "can of piss stretched black" and the second line to me sounds like "(You could, I could, that is a ball...) Either way, I've got no idea. But I think the overall message of this weird album intro is that we're just human compete with our flaws, and as adults we're still flawed and broken. Life doesn't make sense.