Tilao is that small mass of tissue that hangs down from the back of your mouth. It is called “uvula” in English.
Other related Tagalog words:
Makati ang lalamunan ko.
My throat is itchy.
Para saan ang tilao?
What is the uvula for?
Mahalaga daw ang tilao sa paggamit ng iyong boses.
They say the uvula is important for using your voice.
Similar-looking but unrelated word: tilaok (crowing of rooster)