Caprichado comes from the verb caprichar, which means to put a lot of effort, care, or dedication into something, often with a touch of perfectionism or flair. It implies going above and beyond.
In the song, João Gomes sings, "Você podia ter caprichado menos no beijo" (You could have put less effort into the kiss). He's playfully lamenting that the person was too good at kissing, making it impossible for him to forget her. It's an interesting and evocative word that goes beyond a simple
"Morena" (also known as "Culpa da Morena") is a playful piseiro track where João Gomes jokes about a rough night out. He can't sleep, but insists it isn't the caffeine — it's the fault of the "morena," the brunette woman whose kiss won't leave his head.
The verses replay the same regret twice: he wishes he'd taken it easier with her, said no instead of saying yes, and now the story between them has gone somewhere neither of them meant it to go. He gave her everything he had, and none of it mattered — she was only playing around.
By the end he flips from blame to a gentler plea, telling her to stay calm, to slow down — a wink that the real trouble was never the coffee, it was her.