adverb, adverb taking the 'to' particle
Describes the sound or action of eating something hard and crunchy, like crackers or raw vegetables.
彼はせんべいをポリポリ食べた。
He munched on the rice cracker.
adverb, adverb taking the 'to' particle
scratching lightly
Describes the sound or action of lightly scratching an itch, often with fingernails.
蚊に刺されたところをポリポリかいた。
I scratched the mosquito bite lightly.