Call It a Day Lyrics

Lyric discussion by HELICOPTERS 

Cover art for Call It a Day lyrics by Raconteurs, The

i don't see a way this song could possibly be interpreted as referring to drugs. save alcohol and cigarettes, jack white is notoriously sober.

the character in the song is facing a difficult break-up (or seperation) from either a very good friend or romantic interest. "call(ing) it a day" is his way of throwing in the towel, so to speak. he's tired of bickering and doesn't feel that the relationship is going anywhere ("enough has been said / i break down and cry").

could this be a veiled reference to the (possible) end of meg and jack white's career together?