noun
rushing off as soon as the bell rings; dashing out at the school bell
Colloquial, dated term for students bolting from the classroom or to the schoolyard the moment the bell sounds. Often associated with lunch break or end-of-day dismissal.
See also: ベルサッサ
昼休みのチャイムが鳴ると、みんなキンコンダッシュで校庭に飛び出した。
When the lunch bell rang, everyone dashed out to the schoolyard in a 'kin-kon dash'.
あの先生はキンコンダッシュを許さない。
That teacher doesn't allow rushing off as soon as the bell rings.