Cabrón is a very common and versatile Spanish slang word that literally means 'goat', but is used in many contexts. In this song, it's used as an insult, meaning 'bastard' or 'jerk', to describe a man who is consistently unreliable and hurtful.
Paty Cantú uses it to express her frustration with a toxic ex-lover, singing "eras el mismo cabrón de siempre" (you were the same jerk as always). It's a strong, emotionally charged word that captures the raw feeling of betrayal and exasperation.
Paty Cantú and Denisse Guerrero team up for "Al Mismo Kbrn (De Siempre)" to call out that all-too-familiar ex who only wants you back when you've moved on! It's a sassy anthem for anyone who's been through the cycle of an ex reappearing the moment you're happy with someone new. The lyrics hit hard with lines like "Típico que / Me vuelves a llamar / Solo porque / Ya estoy con alguien más" [Typical that / You call me again / Just because / I'm already with someone else].
This song perfectly captures the frustration of realizing your ex only values you when you're unavailable. Paty sings about how he wasn't interested when the path was clear, but now that she's found love again, he wants to come back. She even recalls a time he convinced her to leave an ex for him, only for him to be "el mismo cabrón de siempre" [the same jerk as always] the very next day. This time, though, she's not falling for it, declaring, "Pero, esta vez, no voy a caer" [But, this time, I'm not going to fall].