"Maker of Himself" (elsewhere translated as Self-Creator) was a deity that was part of the Tezcatlipoca Complex of deities that relate to power, omnipotence, often malevolence, feasting and revelry.
"Table 3. Major Deities of the Late Pre-Hispanic Central Mexican Nahua-Speaking Communities." Handbook of Middle American Indians, Volume 6: Social Anthropology, ed Manning Nash (Austin: University of Texas Press, 1967).