I think this song is about an abusive family maybe-"pour another drink mom i dont even want it" and "theres a tiger in the room and a baby in the closet"-a dad being the tiger and a mum being the baby, vulnerable. Or she could mean the baby is a sibling or even her at a younger age. "I'll drink what you leak and I'll smoke what you sigh" this could mean that shed do anything for that person, the mum maybe. Also it could be a drug and alcohol addict and how disorientated they are etc. I love the darkness to this song. Love it! :) .