to have chest pain or a stomach ache due to having eaten a lot (see Molina)
IPAspelling:
eːlpɑntɬɑtɬɑ
Alonso de Molina:
elpantlatla. n. (pret. onelpan tlatlac.) dolerme los pechos oel estomago de mucho comer. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 28v. col. 2. Thanks to Joe Campbell for providing the transcription.