Estrellé comes from the verb estrellarse, which means "to crash". It's a powerful word that creates a dramatic and vivid image.
In the song, Rauw Alejandro sings, "Me estrellé en las curvas de tu cintura" (I crashed on the curves of your waist). He uses this intense metaphor to describe being completely and uncontrollably drawn to someone, as if he's had a powerful collision with his own desire. This poetic line is a memorable example of modern, figurative language in music.
In "Sci-Fi," Puerto Rican producer Tainy and singer Rauw Alejandro give us a high-speed, cinematic rush of late-night infatuation. The whole track is driven by pure anticipation. Rauw cannot wait to meet up with his crush, admitting right from the start: "Aguantarme las ganas no puedo, bebé" [I can't hold back my desire, baby]. He builds up the fantasy with flashy, larger-than-life imagery, matching his luxury car to her designer accessories—"Mi Lambo' pega con tu cartera" [My Lambo matches your purse]—and describing the whole encounter as "una movie, me siento en LA" [a movie, I feel like I'm in LA]. In Puerto Rican slang, saying something is "una movie" means the situation feels epic, glamorous, or straight out of a film.
Once they are together, the lyrics get intensely direct and romantic. Rauw flatters his love interest as "la más cara de todas las pinturas" [the most expensive of all paintings] and claims "tus besos todas las penas me curan" [your kisses cure all my sorrows]. He also leans on popular Caribbean phrasing like "no te voy a dar break" [I'm not giving you a break / a chance to escape] and calls her "mami chula" [pretty girl]. It is a fun, smooth track that tracks the thrill from the moment he pulls up outside her place to when they finally get close.