横おう行こう跋ばっ扈こ

noun, noun or participle which takes 'suru'

rampant; running wild; roaming at will

Describes evildoers, criminals, or undesirable elements acting freely and oppressively, often with a sense of unchecked power. Used as a noun or with する.

• この地ち域いきでは暴ぼう力りょく団だんが横おう行こう跋ばっ扈こしている。

  Gangs are running rampant in this area.

• 不ふ正せいが横おう行こう跋ばっ扈こする社しゃ会かいは健けん全ぜんとは言いえない。

  A society where corruption runs wild cannot be called healthy.