A kind of Asatyāmṛṣā (Vyavahāra) Bhāṣā (speech which is neither truth nor a lie- speech for pragmatic purposes);
that statement or speech, in which the meaning of the words is too profound to be explicit, and also the pronunciation of letters is ambivalent.
avyākṛtā atigambhīraśabdārthā avyaktākṣaraprayuktā vā avibhāvitārthatvāt.
(Prajñā 11.37 Vṛ Pa 159)