noun
fidget spinner
A small handheld toy with a central bearing and weighted lobes, spun between the fingers for stress relief or fun. Wasei-eigo from English 'hand spinner'.
wasei-eigo (Japanese-coined English), from hand spinner
ハンドスピナーを指で回して遊ぶ。
I play with a fidget spinner by spinning it with my fingers.
あの子は授業中にハンドスピナーを回していた。
That kid was spinning a fidget spinner during class.