A child's reed noise-maker.
There are numerous varieties. One kind is made of a small bamboo tube. At the joint end, a thin reed tongue is cut. The lips are placed over the end of tube and reed. Blowing produces a rasping sound, bilili. Other varieties are made of coconut leaves, grass, etc.
For someone (agent muɴ-) to blow on a reed noise-maker.
Maphod di aton nan ung'ungungngan munhappīip.
What the children do in blowing on reed noise-makers is nice.