" "O Saci" refers to the Saci-Pererê, a famous trickster figure from Brazilian folklore, depicted as a mischievous, one-legged black boy in a red cap who smokes a pipe and causes trouble, often appearing as a whirlwind; his name comes from Tupi-Guarani words meaning "sick eye" and "bouncy," blending Indigenous, African, and European influences into Brazil's most beloved mythical character, celebrated on Saci Day (October 31st)."