James Lockhart, Nahuatl as Written: Lessons in Older Written Nahuatl, with Copious Examples and Texts (Stanford: Stanford University Press and UCLA Latin American Studies, 2001), 240.
literally, a wretched, disheveled-haired one (note the components in the see-also field; SW); but also a reference to a disobedient and insulting person (see attestations)