The Back of Your Mouth
Song Meaning

The lyrics suggest that “The Back of Your Mouth” portrays a casual sexual encounter in which intimacy feels fleeting rather than meaningful. Its repeated self-touching and “dirty words” frame sex and communication as things passing through without connection, while the imagery of drinking, vomiting, scratches, and sugar-coated praise suggests a messy, numbed atmosphere. Fans have also read it as a possible tour-hookup narrative and as emotional or sexual dissatisfaction. 1

The meaning

The central reading is a detached sexual encounter. The chorus links self-touching with letting “those dirty words” pass through, suggesting someone using sexual release and emotional distance to avoid being affected by what a partner says. Fans likewise interpret this exchange as a casual fling in which the partners will not see each other again. 1

The song’s language makes the encounter feel physically abrasive and emotionally empty rather than romantic. Images of “dirty scratches,” scars, scabs, and ashes turn desire into something that leaves residue, while “not stopping by, not saying ‘Hi’” stresses the refusal of a lasting connection. The repeated claim that “you can’t kill a liar” can suggest defensiveness, as though dishonesty or emotional armor lets the narrator survive the exchange.

Intoxication intensifies that sense of disorientation. “I’m all drinks,” falling down, and vomiting place the relationship in a chaotic setting, and one fan reading connects the song’s compliments and communication to drug-influenced, sugar-coated speech. 2 Another hears the drinking imagery as a contrast with sobriety. 3

The gendered “girl” and “her tongue” anchor this particular lyrical encounter in a woman-directed relationship, but the song’s larger focus is not romance so much as transience, physicality, and distrust. The speculation that it concerns hookups while touring fits its sense of anonymous movement and brief contact, while the self-touching refrain can also be read as frustration with a partner who leaves the narrator sexually or emotionally unsatisfied. 1

Last updated 2026-09-09