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.
Heartbreak makes people do and say ridiculous things, and Puerto Rican superstar Bad Bunny leans completely into that drama in "Un Coco". The track opens with an impossible promise: he swears he will forget his ex before his cigar blunts out ("Antes que este phillie se apague / Yo te voy a olvidar" [Before this phillie goes out, I'm going to forget you]). It is an absurd deadline, and he knows it. He sits under palm trees secretly hoping a falling coconut knocks him on the head hard enough to wipe his entire memory ("A ver si me cae un coco en la cabeza / Y me borra mi vida entera"). Seeing happy couples disgusts him, and he threatens to throw his radio straight into the ocean if it plays romantic ballads by the pop duo Sin Bandera.
Between beers, beaches, and bad decisions, he drops clever pop-culture jabs. He accuses his ex of hiding her real self by saying she disguised herself as Rubí when she was actually Teresa ("Te disfrazaste de Rubí y eras Teresa"), calling out two of Latin television's most famous ruthless telenovela villains. His friends tease him, telling him he is being totally uncool ("Los muchachos dicen que yo estoy charriando" — charriando is Puerto Rican slang for acting corny or embarrassing). He admits he has thirty awards ("treinta trofeo'") and still feels like a complete loser. Even when he considers fleeing to Chile, Argentina, or El Salvador just to escape the memory, he is still checking daisy petals for hope and begging for a lighter.