Coronao' is a colloquial and shortened form of "coronado," which means "crowned." It's an interesting word choice because it carries a double meaning in the context of urban music.
While literally meaning to be crowned like a king, in this song, Nicky Jam uses it to signify being successful, having achieved a high status, and being on top after overcoming past struggles. It's a powerful declaration of triumph and prosperity.
Nicky Jam opens with a warning instead of a hook. "A mí no me hables de confiar" [Don't talk to me about trusting people], he says, and the reason follows in the next breath: "La última vez que lo hice, salí jodido" [The last time I did, I came out screwed]. Being alone is the sensible option here, not a sad one. The title arrives as a two-word verdict on everyone who walked off, "Fuck you, look at me now", and then he names the only people allowed to stay: "Ando con mis día uno" [I'm rolling with my day ones].
The middle verse is where he does the arithmetic. Money changed what he can lose, "Y tengo mucho que perder, ya no estamos como ayer" [And I have a lot to lose, we're not how we were yesterday], and it changed the menu too: "Los platos son tierra y mar, ya no hay trote pa' comer" [The plates are surf and turf, there's no more scraping by to eat]. The company did not change. He calls them out to their faces, "Ninguno son de cora, ustedes son serpiente'" [Not one of them is real, you all are snakes], and clocks the smile that comes with it, "Por fuera lo decoran, enseñándome los diente'" [On the outside they dress it up, showing me their teeth]. My favourite line is the one that sounds friendliest: "Hoy sí vamos a celebrar por los que no están" [Today we really are going to celebrate for the ones who aren't here].