べらぼう

べらぼう
na-adjective, adverb
ridiculously; absurdly (Edo dialect origin)
1. ridiculously; absurdly; outrageously
Expresses that something is extreme, unreasonable, or beyond normal bounds.
べらぼうに(たか)い。
It's ridiculously expensive.
べらぼうな値段(ねだん)だ。
That's an absurd price.
2. idiot; fool (archaic)
Originally a word meaning fool or simpleton, now mostly used as an intensifier.
べらぼうめ!
You fool! / That's outrageous!

ORIGIN:
Edo (江戸(えど)) dialect, originating from the Tokyo area during the Edo period. べらぼう was originally an insult meaning "fool."

ETYMOLOGY:

Several theories exist:

  • From a deformed person named 便良坊(べんらぼう) (Benrabō) displayed as a sideshow attraction
  • From べら(ぼう) meaning "smooth stick" (implying someone empty-headed)

MODERN USAGE:
Mostly used as an intensifier meaning "ridiculously" or "outrageously." The original sense of "fool" is archaic and mainly appears in period dramas or traditional rakugo stories.

SIMILAR EXPRESSIONS:

  • とんでもない - outrageous
  • 馬鹿(ばか)げた - absurd
  • 途方(とほう)もない - extraordinary

CULTURAL NOTE:
べらぼうめ! is a stereotypical exclamation associated with Edo-period commoners and is often heard in historical dramas (時代劇(じだいげき)).