zacacalli.

Headword: 
zacacalli.
Principal English Translation: 

a war game that involved carrying a bloodied broom made of zacate (straw), as described in the Florentine Codex, Book 2, folio 68 verso; this was related to a religious activity that involved Cinteotl and Huitzilopochtli
See the Digital Florentine Codex, https://florentinecodex.getty.edu/book/2/folio/68v