Popoloca.

Headword: 
Popoloca.
Principal English Translation: 

a person of another ethnicity and language; or, to speak a foreign language, to speak a language badly, or to speak unintelligibly; a barbarian (see Molina and Karttunen)

IPAspelling: 
popolokɑ
Alonso de Molina: 

popoloca. barbaro, hombre de otra nacion y lenguaje.
popoloca. ni. (pret. onipopolocac.) hablar lenguaje barbaro.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 83v. col. 1. Thanks to Joe Campbell for providing the transcription.

Frances Karttunen: 

POPOLOCA to speak a language badly, to speak a foreign language, to speak unintelligibly / hablar languaje bárbaro (M) See POLŌN(I).

POPOLOCOHUA nonact. POPOLOCA.

POPOLOQUĪTIĀ caus. POPOLOCA.
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 203.

themes: 
Speech, Speaking, Oral Tradition