Envasaré is the future tense of the verb envasar, which means 'to pack,' 'to bottle,' or 'to can,' usually in the context of preserving food.
In this song, Miguel Bosé creates a striking and unusual image by singing, "Envasaré mis besos al vacío" (I will vacuum-pack my kisses). This is a poignant metaphor for the end of a relationship, suggesting he is sealing his kisses away forever. It powerfully conveys a sense of finality and the preservation of a love that is now in the past.
"Decirnos Adiós" brings Miguel Bosé and Penélope Cruz together for a dramatic, absolute breakup where neither person is looking back. Right from the start, they set clear rules for walking away: "El último que apague la luz / Que cierre la puerta despacio / Que tire las llaves al fondo del mar" ("The last one to leave turns off the light / Closes the door softly / Throws the keys to the bottom of the sea"). It feels less like a messy fight and more like an official ceremony closing down a shared life. Even with vivid memories like "el húmedo veneno de tus labios" ("the damp poison of your lips"), there is no room left to negotiate.
The imagery turns pitch-black fast. They repeat that leaving each other means "volverlo todo negro / Como la boca de un lobo" ("turning everything black / Like the mouth of a wolf"). In Spanish, saying something is como la boca de un lobo is an everyday idiom for pitch-dark, dangerous places where you cannot see a thing ahead of you. Former excitement turns into cheap junk, described bluntly as "trozos de cartón" ("pieces of cardboard"). One partner even promises to "envasar mis besos al vacío" ("vacuum-pack my kisses") and dance a final solo tango. It is heavy, theatrical pop about coming to terms with a total blackout when love ends.