How Many Cans? Lyrics

Lyric discussion by Grisnjam 

Cover art for How Many Cans? lyrics by Soul Coughing

I think he is talking about trying to forget a failed relationship:

"How many cans must I stack up To wash you out of my mind, Out of my consciousness?"

Maybe she cheated on him?

"She says "Yeah, But he's not in right now". You pause. You like her answer."