It looks like a spelling horror by shear ("cutting tool"), not to mention daniel saavedra's confusion with the lyrics of the song "Historia de taxi" (Ricardo Arjona, 1994), which he actually says. . . I was zigzagging [with my taxi] on Reforma [avenue]. . . " . But we can find some definition, since in the coastal region of Cartagena (Colombia) it is a way of saying "yes" (affirmative) in parlache, especially for phrases like "sisaya, pero cayaya" ("Yes, but quiet") ; also in Islamic countries politics is often called sisaya ( ? "art of mastering animals") , but of this I owe you the etymology. Also in taxonomy there is a lepidopteran insect called Stiria sisaya, and in India there are cities with the name of Sisaya or Sisaiya.
