noun, noun or participle which takes 'suru'
beating time with hands; clapping to the beat
Refers to rhythmic hand-clapping, often as accompaniment to music or to keep time. Can be used as a noun or with する.
観客が手拍子で演奏に合わせた。
The audience clapped along with the performance.
みんなで手拍子をしながら歌を歌
We sang a song while clapping our hands to the beat.
noun
careless move (go, shogi); thoughtless response
Used in board games like go or shogi for a move made without proper thought, often in reaction to the opponent's last move. Figuratively, it can describe any hasty, unthinking response.
相手の手にすぐ反応して手拍子で打ってしまい、形勢を悪くした。
I responded immediately to my opponent's move and played a careless move, worsening my position.
議論で手拍子の反論をすると、かえって不利になる。
If you make a thoughtless rebuttal in a debate, you'll end up at a disadvantage.