Champagne from a Paper Cup Lyrics

Lyric discussion by sarahbear 

Cover art for Champagne from a Paper Cup lyrics by Death Cab for Cutie

i don't think this song has to do with actually driving someone home. I think its meant figuratively and metaphoriclly. Hes using his words to drive her home...rusted words because he had them locked down for so long but now hes drunk and hes talking openly and a lot he says his conversations go "on and on" his conversations are the road and his words are whats driving her home...either to bed with him..or driving her home to never ever want to speak to him again.