Jugada literally means "play" or "move" in the context of a game or sport. However, in this song, it takes on a more nuanced and intriguing meaning.
Christian Nodal uses jugada to refer to a deceptive or unfair action. He asks, "Dime si el merece que le hagas esa jugada" (Tell me if he deserves for you to do that move/play to him), implying that the ex-partner is playing a trick or being dishonest with her new boyfriend by secretly messaging Nodal. This makes the word interesting as it highlights the emotional manipulation and betrayal in the song's narrative.
The song is one long interrogation of an ex who will not let go, and every question in it is rhetorical. "Pa' qué llamarme por las noches / Si quedamos en dejarnos / Para siempre" ("Why call me at night, if we agreed to leave each other for good"), he asks, and then "¿Para qué me confundes? / Cada día más" ("Why do you keep confusing me, more every day"). He already knows the answers. Saying them out loud is the only way he can hold the line.
What makes it harder than an ordinary breakup song is who he keeps picturing: her new partner. "No es justo por él / Si al verle la cara / Tiene esa ilusión / Con la que yo te miraba" ("It's not fair to him — when I look at his face, he has the same hope I used to look at you with"). He recognises himself in the other man, and that recognition is what stops him. The last verse says plainly what she is doing — "Dime si ya sabe / Que me mandas los mensajes / Cuando está durmiendo" ("Tell me if he already knows you send me messages while he is asleep") — and closes on the only decent option left: "Dime si estás a tiempo / Pa' que no hagamos nada" ("Tell me if there is still time for us to do nothing at all").