Amnesia: The Bunker

Meat is an item that when thrown will attract all nearby rats, allowing you to reach a corpse with them attacking you. Prior to getting the Lighter this is the main way to deal with rats, so you will likely get this naturally. If you can’t find Meat, one will always spawn on the table next to where you acquire the Revolver at the beginning of the game, plus there’s also a crate full of it in the Pantry room within Maintenance.