Cordinha is the diminutive of corda (rope), meaning "little rope" or "string". While seemingly simple, its diminutive form adds a playful and endearing quality.
In "Dança Da Cordinha", the word refers to the literal rope used in the popular Brazilian dance game where participants limbo under a rope. The song encourages everyone, regardless of their body type, to join in the fun and pass "por debaixo da cordinha" (under the little rope), making it the central, most engaging, and unique element of the song's theme.
É O Tchan built their career on songs made for dancing, not close listening, and "Dança da Cordinha" is one of the clearest examples. It's built around a limbo-style rope game: "Todo mundo por debaixo da cordinha" ("Everybody under the little rope") sets up the challenge, and the crowd calls each dancer through by name. "Passa negão" ("Pass, big guy"), "Passa loirinha" ("Pass, little blonde girl"), "Quero ver você passar" ("I want to see you pass"); the same three-line call repeats with a different pair each round, "Passa gordão" and "Passa magrinha" ("Pass, big guy" and "Pass, little skinny girl") among them, so nobody in the crowd sits out for long.
The opening line says exactly who this is for: "Essa música é pra galera que tem a junta mole" ("This song is for the people with loose joints"), followed by "Bem molinha" ("Very loose"). That's the whole point of an axé track like this one; it wants bodies moving, not lyrics analyzed. When someone finishes their turn, the song marks it with "Essa aí passou" ("That one passed"), a little cheer built right into the beat, repeated until the whole line has had its turn under the rope.