Enloquece comes from the verb enloquecer, meaning 'to drive crazy' or 'to madden'. It's a strong, evocative word that conveys intense emotion.
In the song, Noel Schajris sings, "Y te enloquece el movimiento de tu piel con mi piel" (And the movement of your skin with my skin drives you crazy). He uses this word to describe the overwhelming and intoxicating effect of physical intimacy, making it a very enticing and memorable word in the context of a romantic song.
"Dime" (tell me) is a slow-burning seduction built almost entirely out of questions. Noel Schajris and Jesús Molina keep pressing the same point: "¿Quién te besa mejor? Dime" (who kisses you better? tell me), "Si te quemas, mi amor" (if you burn, my love), and "Si me mientes o no" (whether you're lying to me or not). The answer they want is in the hook, "Dime que yo, que soy yo" (tell me it's me, that it's me). It's confident to the point of being a bit cocky, and that's the fun of it.
The second half turns up the heat with "¿Quién te hace vibrar en la oscuridad?" (who makes you tremble in the dark?) and a direct invitation: "No lo pienses más, vente para acá" (don't think about it any more, come over here). Notice "vente para acá", a very natural way to say "come here", and "deja de jugar" (stop playing games). The song is full of dime, the command form of decir with me attached, so by the end you'll never forget how to say "tell me".