adverb taking the 'to' particle
hopping; bobbing up and down; lightly jumping
Describes small, repeated vertical movements, like a frog hopping or a child bouncing. Often used with 跳ねる or 動く.
うさぎがぴょこぴょこと跳ねている。
The rabbit is hopping about.
赤ちゃんがぴょこぴょこ動いてかわいい。
The baby is bobbing up and down cutely.
adverb taking the 'to' particle
casually; without a care; lightly
Describes moving or acting in a carefree, lighthearted manner, often with a sense of aimless strolling. Similar to ひょいひょい in this sense.
See also: ひょいひょい
彼はぴょこぴょこと街を歩いていた。
He was strolling casually through the town.