Encharca comes from the verb encharcar, which literally means to flood or drench, often referring to water.
However, in this song, the artist uses it with a suggestive double meaning. When he says, "Y cuando la cama está seca, tú sabes quién te la encharca," he's implying a sexual act, referring to making the bed
"Una Nota" is Cosculluela and Nicky Jam's invitation to a night that doesn't end. The title is Puerto Rican slang for catching a vibe, a buzz that carries two people from the first spark straight through until sunrise.
The verses open with a compliment: she seems too poetic and too beautiful to be alone, so he makes his move. From there the song settles into one simple wish, repeated like a chorus should be: just the two of them, alone in a room, playing at love until the sun comes up.
Between the chorus repeats, both artists lean into bravado. There's jealousy at being apart, playful luxury flexing (Cartier, Christian Dior), and lines that swing from tender ("you go where I go") to over-the-top devotion ("I'd ride with you even in a car bomb"). Nicky Jam's verse turns more boastful and street-smart, closing out a song that's really about wanting someone's full attention for one unforgettable night.