Demagogia translates to "demagoguery," which is a political strategy where a leader appeals to the desires and prejudices of ordinary people rather than using rational argument.
In the context of the song, Boza uses this word to express that his partner's love is genuine and not based on manipulation or false promises. He sings, "Sin demagogia, tú eres la única que me ama cuando to' me odian," meaning "Without demagoguery, you are the only one who loves me when everyone hates me." It's an unexpected and sophisticated word choice for a love song, making it particularly interesting and memorable.
"Sin Waze" is Boza showing off and showing up. The title line says it all: he doesn't need GPS to find his way to her, because he already knows the route by heart.
Most of the song is playful bragging: designer jackets, diamond chains, a joke about loving her "like a Big Mac." Underneath the flexing, though, is a simple message: he's confident, he's into her, and he's not going anywhere. He teases her ex, calls their connection its own kind of "Euphoria," and pictures the two of them somewhere as far off as Paris.
It's a fun, upbeat track about chemistry and swagger. He's not begging for her attention, he's just certain he already has it.