垂たれ流ながす

godan verb (-su)

discharge; let flow out; dump

Often used for releasing waste, pollutants, or unwanted substances into the environment, sometimes with a negative connotation of careless or continuous discharge.

• 工こう場じょうが川かわに汚お水すいを垂たれ流ながしていた。

  The factory was discharging wastewater into the river.

• 彼かれは文もん句くを垂たれ流ながしながら歩あるいていた。

  He was walking along, grumbling complaints nonstop.