Sendo is a cool piece of Puerto Rican slang that means 'tremendous', 'huge', or 'massive'. It's a powerful adjective used to emphasize the size or intensity of something, and it's a word you'll rarely find in a standard Spanish textbook.
In the song, Rauw Alejandro says "dio sendo apretón", which can be translated as "she gave a tremendous squeeze". Learning words like sendo is a great way to understand the regional flavor of music and sound more like a native speaker.
This song is a straight-up invitation to a wild night out. Rauw Alejandro isn't wasting any time with subtlety here. The whole track kicks off with the main question: "¿Qué tal si te pegas?" [What if you get close?]. He's at a party, sees a girl he likes, and lays out his plan for the evening: "Y esta noche eres mi nena y yo tu nene" [And tonight you're my baby and I'm your baby]. The vibe is all about letting loose and having a good time, driven by the party atmosphere where "La nota te tiene suelta y coqueta" [The high has you loose and flirty].
Rauw paints a very specific picture of the woman who has caught his eye. She's confident, popular on social media ("En el TikTok tiene engagement"), and knows what she wants. He's clearly into her, imagining them together and saying "En la cama me imagino tú gritando el nombre mío" [In bed I imagine you screaming my name]. It's a classic reggaeton party track about intense, physical attraction and the desire to take the party home with someone special for the night.