ngudngud trans. to nibble a hard thing; gnaw on something. Adim ngudngudan di am-am-an mu. Don’t nibble on your thumb. Mungngudngud mo din golang. That baby can now nibble. ‑an, muN‑. Sim: bang’ot, kalat. (sem. domains: 5.2.2.1 - Bite, chew.)