Xonado is a colloquial and endearing term in Brazilian Portuguese, meaning "head over heels in love" or "smitten". It's a more informal and passionate way to say apaixonado.
In the song, the lyric "Ai, coração xonado demais" (Oh, heart too much in love) perfectly captures the intense, almost overwhelming feeling of being deeply in love, to the point of heartache. It's a word that conveys a strong emotional state in a very Brazilian way.
Get ready to feel all the feels with Zezé Di Camargo & Luciano's "Aguenta Coração"! This song is a powerful cry from a heart that's really going through it. The singer is just overflowing with sadness, repeating "Ai, coração que chora de dor" [Oh, heart that cries from pain] and "Ai, coração que morre de amor" [Oh, heart that dies from love]. It's clear someone important left, because he sings, "Que um dia partiu E deixou vazio meu coração" [That one day left And left my heart empty].
He's really suffering from this breakup, feeling like his heart is "morrendo Sentindo a dor da separação" [dying Feeling the pain of separation]. He even says that what he's going through, "Eu não desejo para ninguém" [I don't wish for anyone]. It's a raw look at how much a broken heart can hurt, and the title itself, "Aguenta Coração" [Hold on, Heart], is like a plea to his own heart to just keep going through all this pain.