Posponer means "to postpone" or "to put off". It's a less common verb in song lyrics, making it stand out.
In this song, the singer is trying to delay the inevitable pain of a breakup. She sings, "Yo solo quiero posponer esta rutina de perder" (I just want to postpone this routine of losing), expressing her desire to put off the sadness and heartbreak, even if just for a day.
Paty Cantú builds "Hoy No" around one small lie people tell themselves after a breakup: not today. "Voy a llorar por ti pero" ["I'm going to cry for you but"], she sings, and then stalls: "Mañana, mañana, mañana habrá tiempo" ["Tomorrow, tomorrow, tomorrow there'll be time"]. The chorus just repeats the excuse — "Hoy no, hoy no, hoy no" ["Not today, not today, not today"] — until it stops sounding like a decision and starts sounding like a habit.
The verses spell out what she's filling the time with instead: "La de ir con amigas para emborracharme y llamarte y mandarte un mensaje" ["Going out with friends to get drunk, and call you, and text you"], "La de días en pijama y las noches besándome a otro solo pa' olvidarte" ["Days in pajamas, nights kissing someone else just to forget you"]. She names it herself — "Yo solo quiero posponer esta rutina de perder" ["I just want to postpone this routine of losing"] — and never pretends the delay is working.
Paty Cantú is a singer-songwriter hailing from Mexico. She initially rose to prominence as one half of the musical duo Lu. Following her time with Lu, Cantú launched a successful solo career, captivating audiences with her distinctive voice and engaging pop sound.