pachin
A single, sharp snapping or clicking sound — snapping fingers, clicking a ballpoint pen, or the snap of a hair clip closing.
💡Snapping fingers to a rhythm — 'She snapped her fingers pachin to the beat.'
指をぱちんと鳴らした。
I snapped my fingers pachin.
He ___ snapped his fingers and the waiter came over.
指を○○と鳴らすとウェイターが来た。