Extrato literally translates to "extract" or "statement" (like a bank statement). It's an unusual word to find in a song about heartbreak and drinking.
In this song, the phrase "copo de extrato" (cup of extract) is a clever and somewhat humorous way to describe a very strong, concentrated drink, perhaps implying a cheap or makeshift container for alcohol. It evokes a vivid image of someone drowning their sorrows with whatever they can find, making it memorable and unique to the song's context.
Have you ever been stuck in a relationship you know you should leave, but just can't? Lari Ferreira, along with Maiara & Maraisa, perfectly captures this frustrating feeling in "Copo de Extrato." The singer describes a cycle of breaking up and making up, fueled by regret and a little too much to drink. She admits that she loses her pride and self-respect in the relationship, where she's always made to feel like she's in the wrong.
Every time she tries to leave, she finds herself turning to cigarettes and beer, served in a simple "copo de extrato" (a repurposed tomato paste jar often used as a drinking glass). This moment of weakness leads to immediate regret, and she ends up pestering her partner until they get back together. The song's catchy and repeated line, "O tal do bebo apaixonado é chato"—meaning "The drunk in love is annoying"—is a funny and self-aware admission that she knows her behavior is a lot to handle, but she can't seem to break the pattern.