Lyric discussion by nofx_cyanide 

Cover art for The Bag lyrics by NOFX

awesome song... i cant believe that nobody has posted about it yet... i wanna know what he means by "the bag". i get the vibe that in this song he is pondering the insignificance of life, or maybe he is bored with the things that once brought him joy. i dunno, i want other peoples opinions

"Left holding the bag" is kinda an idiom to reference that who's goin to get stuck with the bad situation. Like if you were caught doing something that you weren't supposed to in a group but only you were the one to get caught. It would mean, you were the one left holding the bag. The bag he's talking about, I think, is more along the lines of not wanting to stick around listening to BS all the time or things that don't interest him.