“Nicotine” is a song with a clever double-meaning, talking about both smoking and a toxic relationship. Brendon revealed the double-meaning in a track-by-track review with Rock Sound.

Comparing romantic longings with those of drug users is a classic trope in popular music, going back to songs like 1973’s “Love Jones” or even 1932’s “You’re Getting to Be a Habit With Me.” Considering that love actually does cause the production of mind-altering chemicals, this is perhaps unsurprising.