Sumergido translates to "submerged" or "immersed." It's a vivid and evocative word that paints a strong picture.
In the song, Farruko sings, "Tú me tienes sumergido en un trance" (You have me submerged in a trance). He uses this word metaphorically to express how completely captivated and lost he is in the moment and the presence of the other person, as if he's entirely underwater in their spell.
Ever had a crush on a friend and didn't know how to make a move? That's the whole vibe of Farruko's "Chillax." He starts off a little shy, admitting, "yo no me atrevo a preguntarte" (I don't dare to ask you), but he quickly makes his intentions clear. He wants to "olvidemos que somos amigos" (forget that we're friends) and just relax together. The whole song is an invitation to do just that, summed up by the title and the main hook: "Tú chilling, yo chilling / Vamos a pasarla bien" (You chilling, I'm chilling / Let's have a good time).
He sets a very specific scene for this romantic night with "Velas encendidas, botella de champán, dos copas" (Candles lit, a bottle of champagne, two glasses). From there, the song becomes a direct request for a slow dance so he can "sentir tu cuerpo" (feel your body). Ky-Mani Marley jumps in with some English, playing the role of a student ready to learn from his beautiful teacher. It's a smooth, confident track about turning up the heat and seeing if a friendship can become something more.