Centímetro means “centimeter,” a small unit of measurement. In the song, the singer says there is only “un centímetro entre nosotros” (“one centimeter between us”), turning a precise measurement into a vivid image of intense closeness and romantic tension.
Morat’s “Me Mata” is a playful song about wanting to get closer to someone at a party, while feeling nervous about saying what you really mean. The singer is only “un centímetro entre nosotros” [one centimeter between us], yet that tiny space feels enormous. He says, “Me-me-me-me-me-me mata” [it-it-it-it-it-it kills me] when he sees the person’s eyes, watches them dance, or hears their accent. In Spanish, “me mata” does not mean literal death here. It means something affects him so strongly that he can hardly handle it. The repeated, broken phrase sounds like his thoughts are stumbling too.
He does not want the night to end because the distance between them might remain. He admits, “No me pienso ir de aquí si no te vas conmigo” [I do not plan to leave here if you do not leave with me], and even imagines taking this person to a deserted island. That is a funny, wonderfully excessive way to say, “I only want you.” The real problem is not simply standing face to face. It is “vivir con este espacio entre los dos” [living with this space between us]. As the party continues, the two of them make him tremble and lose control, so he asks, “Dime lo que va a pasar” [tell me what is going to happen].