Cueros de rana literally translates to "frog skins". It's a colorful and creative slang term used in Mexico and other parts of Latin America to refer to US dollars because of their green color.
In the song, the line "Llueven los cueros de rana" (It's raining frog skins) creates a vivid image of money pouring in. This phrase is used to boast about wealth and is a perfect example of the unique, descriptive slang you can discover through music.
Mi Terre CLN drops you straight into the chaos of an active turf war in Culiacán, Sinaloa (shortened to CLN in the title). Fuerza Regida and Juanpa Salazar jump right into the gunfire with the narrator lighting up a joint ("préndase otro gallo" [light another joint]) as shootouts kick off. Channeling Tony Montana with "al estilo de Scarface / Con el rifle bien terciado" (Scarface-style, with the rifle slung across my chest), the speaker refuses to back down against the police. The visual is pure adrenaline: an exotic Lamborghini Urus tearing down the road followed by ten armored trucks ("En verguiza va una Urus / Y atrás van diez camionetas"), with heavy M60 machine guns ready to fire.
Beyond the movie-style shootout imagery, the song is packed with regional slang and cartel allegiances. The narrator explicitly aligns himself with Joaquín "El Chapo" Guzmán and his sons, Alfredo and Iván ("Dicen que son de la gente / Del señor Chapo Guzmán / Listos pa' lo que se venga / Con Alfredo y con Iván"), while identifying his own code name as "09". You will also hear Mexican street idioms like "cueros de rana" (literally "frog skins", slang for green US dollar bills) raining down as profit, and "rifando la suerte" (gambling with luck / risking it all). It is a blunt, unapologetically heavy corrido that shows how loyalty and high-stakes survival run hand-in-hand on home turf.