Cansou is the past tense of the verb cansar, meaning "to tire" or "to get tired". While cansar is common, its use here in O coração que usou cansou (The heart that you used got tired) is particularly impactful.
It personifies the heart, suggesting it's not just physically weary but emotionally exhausted from being mistreated. This gives the word a deeper, more metaphorical meaning than just simple fatigue, making it a powerful expression of heartbreak and resilience in the song.
Have you ever been so over someone that you just can't even pretend anymore? That's exactly what Michel Teló is singing about in "Coração Cansou"! This song is all about reaching that breaking point in a relationship where you're done with the games and ready to move on.
He's telling his ex, "Não vou mais te procurar" [I won't look for you anymore] and that she'll never hear the word saudade (a deep longing or nostalgia) come from his mouth. Talk about blunt! He's not letting her manipulate him anymore, declaring, "Eu não vou deixar você fazer de mim o que bem entende" [I won't let you do whatever you want with me]. He even says he doesn't care if she cries, because it's "pouco pra quem nunca soube amar" [not enough for someone who never knew how to love]. Ouch! But here's the kicker: he's convinced that even though he's moving on, she'll try to forget him but won't be able to. He sings, "O coração que usou cansou" [The heart you used got tired], and he's sure that after a night out, saudade will hit her, and she'll realize she can't forget him. It's a powerful anthem for anyone who's finally found the strength to walk away from a toxic love.