Mistério translates to "mystery". It's an intriguing word that immediately sparks curiosity and makes you wonder what secrets the song holds.
In the context of the song, Jorge Ben Jor sings, "Pois o meu samba tem mistério" (Because my samba has mystery). He's not just talking about a secret, but implying that his samba has a special, captivating quality or a unique rhythm that makes it stand out and is irresistible to dance to.
Jorge Ben Jor turns a courtship into a dance-floor dare on "Rosa, Menina Rosa" ("Rosa, pink girl"). He's heard about this woman's reputation on the floor — "Me disseram que você samba demais" ("They told me that you samba too much") — and answers it with his own: "Mas o meu samba tem mistério" ("But my samba has mystery"). From there the song settles into one looping invitation, "Vem que eu quero ver você sambar" ("Come, I want to see you samba"), repeated until it becomes the whole point of the track. It's a classic Jorge Ben Jor move: no real story, just a groove built to repeat, ending on a challenge rather than a resolution — "Se você gosta de samba, você vai ter que balançar" ("If you like samba, you'll have to sway").