Encima de mil literally translates to "on top of a thousand" or "above a thousand". It's an interesting phrase because it's not a common idiom, making its meaning somewhat open to interpretation.
In the context of the song, it seems to convey a feeling of being on cloud nine, or perhaps being above all worries and problems when with the person he loves. The singer repeats "Estoy con ella siempre encima de mil" (I'm with her always above a thousand), suggesting a state of extreme happiness and elevated emotion, as if their love lifts them above everything else.
Have you ever met someone at just the right time? Kurt and Alejandro Santamaria's "Encima De Mil" is all about that amazing feeling of finding love when you least expect it, especially when the other person is going through a tough time.
The song kicks off with Kurt spotting a girl at a bar, clearly upset after a breakup: "Cuando yo la conocí, estaba mal con el novio" [When I met her, she was bad with the boyfriend]. He sees her sad eyes and can't help but try to cheer her up with jokes. And just like that, he's hooked! He sings, "Y con esa sonrisa yo me quise quedar" [And with that smile, I wanted to stay]. From then on, it's a whirlwind romance. They spend every moment together, watching Netflix, laughing, and just enjoying each other's company. He feels like he's "Flotando desde el día en que la vi" [Floating since the day I saw her], completely head over heels. It's a sweet, fun song about falling hard and fast, and wanting that feeling to last forever.