Cuerpazo is an augmentative of cuerpo (body), meaning a "great body" or "hot body." It's a playful and somewhat informal term that immediately grabs attention.
In the song, Thalia uses it right at the beginning: "Con ese cuerpazo, debiste de ser modelo" (With that great body, you should have been a model). It sets a flirtatious and confident tone, highlighting the physical attraction she feels for the person she's singing about. This word is memorable because it's a bit cheeky and not a standard dictionary term, making it interesting for learners.
Thalia's "Eres Mío" is a fun, confident anthem about claiming your love! She starts by playfully teasing her partner, saying he could have been a model with his "cuerpazo" [great body] but instead he's at home with the dog. She's cool with a "tipo normal" [normal guy] as long as he knows how to love her and brings her champagne and rosé every month.
But don't mistake her for being passive! Thalia makes it clear that this man is hers, singing "Tú eres mío, mío, mío" [You are mine, mine, mine] and pointing out that his profile picture is of them together. And she's just as committed, declaring "Y yo soy tuya, tuya, tuya" [And I am yours, yours, yours], telling anyone else trying to message her to find their own love. It's a playful yet firm declaration of exclusive love, with a touch of fun swagger!