noun
a hundred lashes; a hundred strokes
Refers to a punishment of one hundred strikes, often with a whip or cane. Can be used literally or figuratively for severe scolding or criticism.
昔の刑罰では、罪人に百叩きが科されることもあった。
In old punishments, criminals were sometimes sentenced to a hundred lashes.
彼は上司からミスのことで百叩きにあった。
He got a severe scolding from his boss for his mistake.
Compound of 百 (ひゃく, 'hundred') and 叩き (たたき, 'striking'), the noun form of 叩く (たたく, 'to strike').