Loquera is a catchy slang noun related to loco (“crazy”), meaning craziness, wild behavior, or a chaotic lifestyle. In the song, Jere Klein uses it in phrases like “mi maldita loquera” and “sus loquera’” to refer to his unruly attitude and the things people criticize about him, making it more colorful than the everyday word locura.
Jere Klein opens with a demand he repeats all song: "Ya gente, denme banda" (come on, people, give me some room). Dar banda is slang for giving someone space, but there is a pun in it, because la banda is also the crew. He is cruising on success, "Todo 6.5, todo bello" (everything's 6.5, everything's beautiful), and he thanks "al maldito que en mí nunca confió" (the bastard who never believed in me). The dream line is simple and specific: "Ya viajaremo' el mundo, andaremo' en Holanda" (soon we'll travel the world, we'll be hanging out in Holland).
The rest is a flex aimed at the haters. "Les molestan mis cadenas" (my chains bother them) and "Les duele ver al menor con la billetera llena" (it hurts them to see the young guy with a full wallet). Adan La Amenaza's verse leans hard on Chilean street slang: giles are idiots, hueá is an all-purpose word for "thing" or "stuff", and fierro means a gun. It is cocky and a bit much, which is exactly the point, and the chorus about envy, "Tanta envidia que le tienen a la banda" (so much envy they have for the crew), ties it together.