Chiquitita is a diminutive of chiquita, meaning "little one." It's a tender and affectionate term of endearment, often used for a girlfriend, daughter, or any beloved female.
In the song, Neton Vega uses Chiquitita to directly address the person he misses, adding a layer of intimacy and heartfelt longing to his lament. It's a charming word that conveys deep affection and makes the listener feel the personal connection the artist has with the subject of the song.
"Sin Ti" plays like Neton Vega talking himself in circles late at night. He opens with "Otra noche que ha pasado, y no te volví a besar" [Another night has gone by, and I didn't get to kiss you again], and from there he keeps turning the same thought over: she left without an explanation, and now everything spins around him. "Y todo da vueltas a mi alrededor, porque no sé vivir sin tu amor" [And everything spins around me, because I don't know how to live without your love].
Halfway through, the song stops being a love song for a second and becomes a shout-out. Vega breaks the melody to drop his own producer tag, "Así suena El Neto" [This is how El Neto sounds], the kind of self-credit corridos tumbados artists like to slip into a track before the beat drops back into the heartbreak. Then he's right back at the door, promising he'll keep missing her until she comes back.