Farsante translates to "impostor," "phony," or "faker." It's a powerful word used to describe someone who is insincere or pretends to be something they are not.
In this hit song, Ozuna uses this word for a dramatic confession, singing, "Yo sé que en el amor soy un farsante" (I know that in love, I'm an impostor). He's admitting his mistakes and acknowledging that he wasn't the loyal partner he claimed to be, making this word the emotional core of his plea for forgiveness.
In "El Farsante", Puerto Rican reggaeton artist Ozuna is sitting in an empty bed, completely miserable after a breakup. He confesses right off the bat that he messed up: "Mentí diciéndote que era leal" ("I lied telling you I was loyal"). Calling himself an outright fake in romance ("en el amor soy un farsante"), he admits single life is totally overrated. He bluntly declares he does not want his freedom back ("Mi libertad no la quiero"). Instead, his ideal future is surprisingly simple and hilariously honest: he just wants his partner back, daily intimacy, and "una cuenta de banco con dígitos y muchos ceros" ("a bank account with digits and many zeros") so they can spend cash together.
Without her scent on the sheets, he says he is stuck in limbo ("Me encuentro en un limbo desde que te fuiste de aquí"). Nothing else feels interesting anymore, and he swears to God that if they do not fix this relationship, he will never fall in love again ("Yo sin ti no vuelvo a enamorarme bebé"). It is a smooth, catchy track where an unfaithful guy completely drops his ego, admits his faults, and begs for one more chance to save the love he ruined.