to spend an entire day without accomplishing anything (see Molina)
Orthographic Variants:
nicnempoloa ycemilhuitl
Alonso de Molina:
nicnempoloa ycemilhuitl. (pret. onicnempolo icemilhuitl.) gastar todo el dia en vano o sin prouecho. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 71v. col. 2. Thanks to Joe Campbell for providing the transcription.