Mud-Slap is a move used by certain Pokémon in the Pokémon video game series. It is a Ground-type attack that involves the user throwing mud at the opponent, which can lower their accuracy. This makes it harder for the opponent to hit their attacks, giving the user a strategic advantage in battles. The move is often associated with Pokémon that have a connection to mud or earth, such as Sandshrew or Wooper. While it may not deal significant damage, its ability to reduce accuracy can be crucial in competitive battles, allowing users to evade attacks more effectively.