Guagua is a fascinating example of regional Spanish slang. In this song, Puerto Rican artist Rauw Alejandro uses guagua to mean "bus," a common term in many Caribbean countries.
What makes this word so interesting is that its meaning changes dramatically depending on where you are! While it means 'bus' in Puerto Rico and Cuba, travel to Chile or Peru and guagua means 'baby' or 'infant'. Learning words like this is a great way to explore the diversity of the Spanish language.
In "Déjame Entrar," Rauw Alejandro tells a pretty straightforward story about finally getting together with his long-time crush. He starts by admitting, "Desde hace tiempo yo quería hablarle / Y ahora la tengo al frente mío" (I've wanted to talk to her for a while / And now I have her in front of me). He's trying to play it cool but is clearly losing his mind with anticipation, asking her "¿Qué te detiene?" (What's stopping you?). The song is all about that moment of tension and desire when you're not sure what the other person is thinking, but their body language says it all.
Rauw gets very direct about what he wants. He observes, "No puedo descifrar lo que dice su mente / Pero su cuerpo pide algo diferente" (I can't figure out what her mind is saying / But her body is asking for something different). The song quickly moves from the dance floor to the bedroom, with blunt lines like "Ahora está en mi cama, sacó un Royal Flush" (Now she's in my bed, she pulled a Royal Flush). It's a classic reggaeton track that's all about physical connection, desire, and the excitement of a new, intense romance he hopes will last, even if just for a little while: "Yo espero que estemos juntos hasta el otro verano" (I hope we're together until next summer).