tlapana.

Headword: 
tlapana.
Principal English Translation: 

to break or split something open; or, to hatch chicks (see Karttunen)

IPAspelling: 
tɬɑpɑːnɑ
Alonso de Molina: 

tlapana. nitla. (pret. onitlatlapan.) quebrar algo, sacar pollos las aues, o descaxacarar mazorcas de cacao, o de cosa semejante.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 131r. col. 1. Thanks to Joe Campbell for providing the transcription.

Frances Karttunen: 

TLAPĀN(A) vt to break or split something open, to break something open, to hatch chicks / quebrar algo, sacar pollos las aves, o descascarar mazorcas de cacao o de cosa semejante (M) See TLAPĀN(I).

TLAPĀNILIĀ applic. TLAPĀN(A).

TLAPĀNALTIĀ caus. TLAPĀN(A).
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 289.

Attestations from sources in English: 

See an image that represents tlapana in the Visual Lexicon of Aztec Hieroglyphs, ed. Stephanie Wood (Eugene, Ore.: Wired Humanities, 2020-present).

themes: 
Animals, Bugs, Insects, Reptiles, Fish, etc.