逆さか落おとし

noun

dropping headfirst down a precipice

Specifically refers to the act of throwing or dropping something (or someone) upside down from a cliff or high place. Often associated with historical or dramatic contexts, such as executions or battle tactics.

• 戦せん国ごく時じ代だいには、捕ほ虜りょを逆さか落おとしにする処しょ刑けい方ほう法ほうがあった。

  In the Warring States period, there was an execution method of dropping prisoners headfirst from a cliff.

noun

downhill rush; plunging down a precipice

Describes a rapid, headlong descent down a steep slope, often in sports like skiing or mountain biking, or in a metaphorical sense of a swift downward movement.

• スキーヤーが急きゅう斜しゃ面めんを逆さか落おとしに滑すべり降おりた。

  The skier rushed downhill headlong down the steep slope.