Gūthabhāṇīsutta
“Tayome, bhikkhave, puggalā santo saṁvijjamānā lokasmiṁ. Katame tayo? Gūthabhāṇī, pupphabhāṇī, madhubhāṇī. Katamo ca, bhikkhave, puggalo gūthabhāṇī? Idha, bhikkhave, ekacco puggalo sabhaggato vā parisaggato vā ñātimajjhagato vā pūgamajjhagato vā rājakulamajjhagato vā abhinīto sakkhipuṭṭho: ‘ehambho purisa, yaṁ jānāsi taṁ vadehī’ti. So ajānaṁ vā āha: ‘jānāmī’ti, jānaṁ vā āha: ‘na jānāmī’ti, apassaṁ vā āha: ‘passāmī’ti, passaṁ vā āha: ‘na passāmī’ti; iti attahetu vā parahetu vā āmisakiñcikkhahetu vā sampajānamusā bhāsitā hoti. Ayaṁ vuccati, bhikkhave, puggalo gūthabhāṇī.
Speech like Dung
“These three individuals are found in the world. What three? One with speech like dung, one with speech like flowers, and one with speech like honey. And who has speech like dung? It’s an individual who is summoned to a council, an assembly, a family meeting, a guild, or to the royal court, and asked to bear witness: ‘Please, my man, say what you know.’ Not knowing, they say ‘I know.’ Knowing, they say ‘I don’t know.’ Not seeing, they say ‘I see.’ And seeing, they say ‘I don’t see.’ So they deliberately lie for the sake of themselves or another, or for some trivial worldly reason. This is called an individual with speech like dung.