'Fouled' in the Bible

“Son of man, take up a lamentation over Pharaoh king of Egypt and say to him,‘You compared yourself to a young lion of the nations,Yet you are like the monster in the seas;And you burst forth in your riversAnd muddied the waters with your feetAnd fouled their rivers.’”

And as for my flock, they eat that which ye have trodden with your feet; and they drink that which ye have fouled with your feet.