Forzar means 'to force' or 'to compel'. It's a powerful verb that implies using strength or will to make something happen against resistance.
In the song, Shakira sings about being willing to "Forzar el destino" (Force destiny) for her love. This dramatic phrase shows the depth of her passion, suggesting she would even fight against fate itself to not lose the person she loves.
This song is all about that one person you just can't seem to shake, no matter how hard you try—or in this case, no matter how often you forget to try! Shakira sings about being stuck in a loop with someone she knows isn't right for her. She admits, "Voy a repetir / El mismo error de ayer" (I'm going to repeat / The same mistake as yesterday). It's a frustrating cycle where she feels completely defeated and even calls herself an idiot for constantly falling back into the same trap.
The central idea is a clever twist on words: "Nunca me acuerdo de olvidarte" (I never remember to forget you). It's not that she's incapable of forgetting, but the thought just never occurs to her because her whole world revolves around this person. She knows everyone else thinks she should move on, but she's willing to do anything—even "Matar o morir" (Kill or die)—just to avoid losing their love. It's a dramatic, funny, and painfully relatable song about being hopelessly hooked on someone.