The Fridge is a singing character in Darkness' Kitchen. Inside him are carrots who are imprisoned. In order to have them out, Pajama Sam uses Carrot to free them so that he can get his mask back.
Pajama Sam in "No Need To Hide When It's Dark Outside"[]
In all games, the fridge will be in Darkness' Kitchen, but he will only be important in the Salad Liberation storyline.
In the Salad Liberation storyline, Carrot asks for Sam's help to get his fellow carrot allies out of Fridge in exchange for returning Sam his mask.
When Sam arrives in the kitchen and goes to Fridge, he tricks the Fridge into thinking he has come to imprison Carrot into him. Fridge falls for this and opens his door in order to let Sam put Carrot into imprisonment. However once he does that, Carrot reveal to his friends that he and Sam are allies and that the carrot allies are now finally free. The Salad Liberation Front then escape Fridge and Carrot returns Sam his mask before leaving to rejoin his fellow carrots.