A sub-category of Pratisevanā Pulāka Nirgrantha (3);
that ascetic (Muni), who makes his (virtue of) knowledge bereft of spirit by indulging in the transgressions of knowledge, such as skhalita (slip of tongue and the like), milita (faulty pronunciation by mixing the letters and the like) etc. and who vitiates knowledge.
Skhalitamilitādibhiraticārairjnānamāsrityātmāṇaṃ asāraṃ kurvan jnāpulākaḥ.
(Sthū 5.185 Vṛ Pa 320)
jñānamāśritya pulākastasyāsāratākārī virādhaka jñānapidākaḥ...
khaliyāidūsaṇehiṃ nāṇaṃ, saṃkāiehiṃ sammattaṃ.
mūluttaraguṇapaḍisevaṇāi caraṇaṃ virāhei..
(Bhaga 25.279 Vr)