noun, adverb taking the 'to' particle
itching-to-grab gesture; grabby hand motion
Describes a hand gesture where one repeatedly opens and closes the fingers, as if eager to grab something. Often used with する or と.
赤ちゃんがおもちゃを見て、手をわきわきさせている。
The baby is making a grabby gesture with its hands at the toy.
猫がおやつの前でわきわきと手を動かした。
The cat moved its paws in an itching-to-grab motion in front of the treat.