satan's toilet
Definition: The hidden bonus scenes in movies found after the end credits have passed.
Origin: The term originated with the film Masters of the Universe in which at the end of the movie Skeletor (the main antagonist) is seen to rise up out of bubbling demonic pit to shout "I'll be back". As he was seen to be rising out of Satan's Toilet the scene was referred to as the Satan's Toilet scene and eventually the term became synonymous with all bonus or hidden scenes in movies occurring after the credits.
Origin: The term originated with the film Masters of the Universe in which at the end of the movie Skeletor (the main antagonist) is seen to rise up out of bubbling demonic pit to shout "I'll be back". As he was seen to be rising out of Satan's Toilet the scene was referred to as the Satan's Toilet scene and eventually the term became synonymous with all bonus or hidden scenes in movies occurring after the credits.
Did you see the Satan's Toilet in Deadpool? it was a total homage to Ferris Bueller.