Laço is a versatile word that can mean 'knot', 'lasso', or even 'bow' (like a hair bow). In this song, it's used in a clever double entendre.
The lyrics say "Seu braço de corda seu amor de laço", which translates to "Your arm of rope, your love of lasso/knot". It evokes the image of being tied down or caught in a trap by love, making it a unique and engaging word choice that goes beyond its literal meanings.
In "Amor De Laço," the singer describes a love that caught him completely by surprise. He thought he had a "coração blindado" (an armored heart), immune to any love spells. But he took a risk and got entangled in a relationship that felt like a trap. He uses the powerful image of an "amor de laço" (a lasso love) to show how captured he was, describing it as an "addiction" and his "biggest sin."
Now, he's fighting the urge to go back. Even though he has strong memories of their physical intimacy that make him want to reconnect ("Até bate vontade" or "I even feel the urge"), he's determined not to call her. He repeats the phrase "Mas não vou te ligar" (But I'm not going to call you) over and over, trying to convince himself. The reason is simple: he's in a "outra vibe" (a different vibe), suggesting he has moved on and is committed to his new life.