Individuals who pollute or contaminate environments.
People guilty of moral misconduct or wrongdoing.
Those responsible for violating rules in sports.
Creatures that capture birds, especially waterfowl hunters.
Devices used to foul fish nets or traps effectively.
Makes something dirty or unclean.
Pollutes an area with waste materials.
Disrupts a game by committing a violation.
Obstructs movement in a sport context.
Harms the reputation of someone/something negatively.