Brigado is a colloquial and shortened form of "Obrigado" (thank you) in Portuguese. It's a common informal way to express gratitude, especially in spoken Brazilian Portuguese.
In the context of the song, it appears at the very end, almost like an afterthought or a casual sign-off after a deeply emotional and introspective reflection on love, hate, and longing. Its abruptness adds a touch of raw authenticity to the song's conclusion.
Have you ever been so completely smitten with someone that you'd change anything about yourself just to please them? That's exactly where Pedro Mariano and Analaga take us in "Quase Um Segundo." The singer is practically begging, asking, "Eu queria ver no escuro do mundo / Onde está tudo o que você quer / Pra me transformar no que te agrada" [I wanted to see in the darkness of the world / Where everything you want is / To transform myself into what pleases you]. It's a powerful feeling of wanting to understand someone so deeply that you can become whatever they desire.
But it's not all sunshine and roses! The song also explores that intense push and pull of love. There's a moment of vulnerability after a bad dream, leading to a late-night call: "Eu tive um sonho ruim e acordei chorando / Por isso eu te liguei" [I had a bad dream and woke up crying / That's why I called you]. And then comes the wonderfully honest confession: "Às vezes te odeio por quase um segundo / Depois te amo mais" [Sometimes I hate you for almost a second / Then I love you more]. It perfectly captures that whirlwind of emotions when you're head over heels for someone, even the little things like "Teus pelos, teu gosto, teu rosto, tudo / Que não me deixa em paz" [Your hair, your taste, your face, everything / That doesn't leave me in peace] become part of that irresistible pull. It's a beautiful, relatable look at the messy, passionate side of love.