Charriando is a fantastic example of Puerto Rican slang that you won't find in a textbook. It comes from the word charro, which can mean tacky or ridiculous, and to charrear means to clown around or act foolishly.
In "Un Coco", Bad Bunny sings that his friends say "yo estoy charriando" (I'm clowning) because he can't get over his ex. It perfectly captures that feeling of looking like a fool for love, and it's the kind of authentic, colloquial word that makes learning with music so special.
This song is one of Bad Bunny's most relatable breakup tracks. He's trying everything he can to get over someone, but it's just not working.
He sets himself a deadline: he has to forget his ex "Antes que este phillie se apague" (Before this phillie goes out). To make it happen, he's sitting under a palm tree, hoping a coconut falls on his head and erases his memory. It's a pretty funny and dramatic image! He can't even listen to the radio because he hates love songs now. Despite all his success—he mentions having "Treinta trofeo' y aún me siento perdedor" (Thirty trophies and I still feel like a loser)—he's still hung up on this person. He even admits he still wants them, saying "Qué cojones, todavía yo te quiero" (What the hell, I still love/want you).