Fría literally means "cold" (the feminine form), but in this song and in many Spanish-speaking countries, it's popular slang for "a cold beer". It's a casual and friendly term you'd hear among friends.
Enrique Iglesias uses this in the chorus, "Sólo salí por una fría" (I only went out for a cold one), as a playful excuse to his partner for being out late. Learning this word is a fun peek into everyday Spanish slang and the central theme of this catchy song.
Ever come home late from a party and had to do some fast talking? That's exactly what's happening in this super fun track from Enrique Iglesias. He's trying to convince his partner that he's completely innocent, even though he didn't get home on time. His main excuse? "Sólo salí por una fría" (I only went out for a cold one). He insists he was faithful, swearing "no estuve con nadie, juro por Dios" (I wasn't with anyone, I swear to God), and even blames her friends for stirring up trouble, telling her "Tus amigas te mentían" (Your friends were lying to you).
But his story gets more and more ridiculous as he tries to explain away all the evidence! He claims his shirt was torn during a goal celebration, there's a wine stain because someone tripped, and someone else kissed him right as things got crazy. It's a hilarious list of excuses for a night that was clearly more than just one quick beer. He's trying so hard to sound like a good guy, but the details he gives just make him sound more guilty and completely shameless, or as he puts it, a "descarado".