Embustero translates to "liar" or "deceiver." It's a strong and somewhat formal word for someone who tells lies, often with the intent to mislead or trick.
In the song, Natti Natasha uses embustero to directly call out her lover, comparing him to Pinocchio. She sings, "Confirmé eres embustero, como hombre te doy cero" (I confirmed you're a liar, as a man I give you a zero), emphasizing his deceitful nature and her disappointment in him.
Natti Natasha is not holding back in "Pinocchio"! This song is a super fun and sassy takedown of a guy who turned out to be a total fraud. She starts off feeling really let down, saying, "Estoy decepcionada, no eres lo que yo esperaba" [I'm disappointed, you're not what I expected]. It's like she saw a pretty picture from far away, but up close, it was all just a facade.
She thought he was a "dulce caballero" [sweet gentleman], but underneath that charming exterior, she found a "niño hecho de leña y de carbón y poco sincero" [a boy made of wood and coal, and insincere]. Ouch! The lyrics really lean into the Pinocchio comparison, especially when she sings, "Crece y crece, ya te veo narizón" [It grows and grows, I already see your big nose]. She's basically calling him out for all his lies and empty promises, declaring, "Confirmé eres embustero, como hombre te doy cero" [I confirmed you're a liar, as a man I give you a zero]. It's a blunt and hilarious way to say he's completely failed her expectations. This song is all about realizing you've been fooled and taking back your power!