弾だん丸がん登と山ざん

noun

bullet climb; speed climb without proper rest

Refers to climbing a mountain, especially Mt. Fuji, in a single rapid push without overnight stays or recommended rest stops, often associated with altitude sickness risk.

• 弾だん丸がん登と山ざんは高こう山ざん病びょうのリスクが高たかい。

  Bullet climbing carries a high risk of altitude sickness.

• 富ふ士じ山さんの弾だん丸がん登と山ざんが問もん題だいになっている。

  Bullet climbing on Mt. Fuji has become a problem.