The Tipiṭaka in Three Languages

Sekhiyakaṇḍa

Vinayapiṭaka · Parivāra · Vol. 8 · Section 435

[435] Out of disrespect (anādariya), eating while sticking out the tongue (jivhānicchāraka), a bhikkhu commits one offence (āpatti): a dukkaṭa.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 5 other places