Every Friday -- that's what Toda Seixta-Feira means...not sure about the rest, but this song sure as heck makes my Friday better!
UPDATE: A blog friend in Brazil provides this translation:
Toda sexta-feira -- Every Friday
Toda roupa é branca -- Every clothing is white
Toda pele é preta -- Every skin is black
Todo mundo canta -- Everybody sings
Todo o céu magenta -- Sky is all magenta
Toda sexta-feira -- Every Friday
Todo canto é santo -- Every song is a sacred one
E toda conta -- And every bead
Toda gota -- Every drop
Toda onda -- Every wave
Toda moça -- Every woman
Toda renda -- Every lace
Toda sexta-feira -- Every Friday
Todo o mundo é baiano junto -- Everybody is baiano altogether
"Baiano" is someone from the Brazilian state of Bahia.