An Aticāra (partial transgression) of Anarthadaṇḍaviramaṇa Vrata (vow of abstinence from violent Anarthadaṇḍa (violent activity indulged in wantonly on account of remissness), the eighth vow of the lay follower);
to indulge in amorous and jocular activities through the funny gestures of face, nose etc. like a clown.
'kautkucyam' anekaprakārā mukhanayanadivikārapūrvikā parihāsādijanikā bhāndānāmiva vidambanakriyā, ayamapi tathaiva.
(Upā 1.39 Vṛ p. 17)