to skin the rump or removed the tail of animals or birds (see Molina)
IPAspelling:
kwitɬɑpilɑːnɑ
Alonso de Molina:
cuitlapilana. nite. (pret. onitecuitlapilan.) desrrabar animales o aues. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 27r. col. 2. Thanks to Joe Campbell for providing the transcription.