To squeeze the milk/oil out of grated coconuts into one's hair; to let s.o. use some of one's grated coconut (for hair).
Aku na ngalubi anak-anak naa.
I'll be the one to squeeze coconut milk on that child's hair.
I'm going to squeeze some coconut milk on my hair.
Let me use some of your grated coconut for my hair, okay?