Visajosa is a Colombian slang term that describes someone who is a show-off, overly dramatic, or makes a lot of gestures and expressions to draw attention.
In the song, the artist uses it to describe a person who enjoys playing games and seeking attention, specifically in the line, "Que a ti te gusta, que te ruegue, que te azare, visajosa." It's a colorful and regionally specific word that adds a unique flavor to the lyrics.
"Las Cartas" is a breakup song about the moment someone finally shows their real hand. The singer's partner asked for time apart, and a week later he still has not heard from her. What she called a break has turned into a slow reveal of who she actually is.
The title carries the whole idea. She let her cards be seen, she started showing her cards, and the relationship becomes a hand he can finally read. He is hurt, but he is not pleading. He tells her to fly if she needs to, says he will not hold her back, and warns that she will answer for it sooner or later.
Luister La Voz and Maikol El Insoportable take the two halves. The first is wounded and direct, full of respect asked for and not given. The second is lighter and more defiant: let her run, she will come back worn out, and he is doing perfectly well on his own. By the end he has made up his mind. He does not want her back as a girlfriend, and not as a friend either.