Agonia translates to "agony" or "anguish". It's a strong and evocative word that perfectly captures the intense emotional pain described in the song.
In the lyrics, the singer expresses her deep distress and torment over seeing her ex-partner happy with someone else. Her "agonia" is the desperate hope that the new relationship will fail so she can have him back, making it a central theme of the song.
Have you ever had to pretend you were okay with someone you like being with another person? In "Agonia," Mari Fernandez and Vitor Fernandes sing about this exact feeling. The singers admit that even though they promised to be strong and not get jealous, it's hard. Seeing their love interest happy with someone else on social media stories becomes a painful trigger, giving them a "reason to drink."
This feeling builds into a state of agonia, or agony. The singers reveal their true desire for a different "position" in this person's life, cleverly clarifying they're not talking about a physical one. Their agony comes from a difficult hope: they are stuck waiting for the current partner to make a mistake, so they can finally have a chance at love. It's a song about the torment of unrequited love and waiting on the sidelines.