Mudcap, also known as mudflap or splash guard, refers to a vehicle accessory that is designed to prevent mud and debris from being kicked up by the tires and onto the exterior of the car's body. Some common synonyms for the term mudcap include fender flares, rock guards, and splash guards. Fender flares are typically larger and more rigid than mudcaps, whereas rock guards are designed specifically to prevent debris from damaging the vehicle's paint. Splash guards are the most commonly used term for mudcaps, and come in a variety of sizes and styles to accommodate different types of vehicles. Whether you call it a mudcap, fender flare, rock guard, or splash guard, the purpose remains the same - to protect your vehicle from dirt and debris.