The song "Flaca" by Andrés Calamaro is a poignant ballad that explores the complexity of a past relationship. The opening lines, "Flaca no me claves tus puñales por la espalda tan profundo, no me duelen, no me hacen mal" (Skinny, don't stab me in the back with your knives so deep, they don't hurt me, they don't do me harm), speak of a betrayal that the speaker has come to terms with. Though they acknowledge the hurt, it no longer impacts them in the present moment. The following lines describe the speaker's memories of their past love, saying that the roots of their love will remain even though they are now far apart. The chorus repeats this idea of the unbreakable roots of their love, no matter how far they are from each other.

The second verse delves deeper into their memories, with the lines "Entre el no me olvides, me dejes nuestros abriles olvidados en el fondo del placard del cuarto de invitados" (Among the "don't forget me's," you leave behind our forgotten Aprils in the back of the guest room closet). These lines suggest that while both parties have moved on, there are remnants of their past together that will not fade away. The final lines of the song reveal the possible guilt the speaker feels in their role in the relationship's demise. They ask their past love to be honest with them, though they acknowledge that they might not have always been the best partner either. By the end, the song seems to conclude that while the pain of the past still lingers, there is a sense of mutual respect for everything they shared.