Aterrizo is the 'I' form of the verb aterrizar, which literally means "to land," like an airplane touching down on a runway.
In this song, Beele uses it in a clever, modern way. He sings, "Manda ubi que yo te aterrizo," which translates to "Send your location, and I'll land there." It's a cool, confident slang expression for saying "I'll show up" or "I'll pull up," painting a picture of him arriving swiftly and directly to meet the person he's singing to.
Colombian artist Beéle has one big question in this song: why are we apart when we have this connection? He argues that it just makes no sense. He remembers the exact moment they met, saying, "tú y yo conectamos la primera vez que nos vimos a los ojos" (you and I connected the first time we looked into each other's eyes). It was so intense that he feels they literally "paramos el tiempo" (stopped time) that night.
Now, he's stuck thinking about her and trying to figure out where she is. He's frustrated that they're in different places: "Bebé, tú allá y yo acá" (Baby, you over there and me over here). He even admits to re-watching an intimate video they made, which is a very direct and personal detail. The whole song is his plea that their separation is illogical because what they felt was real, and he can't just forget it.