Detention X
Detention X
Series The Grim Adventures of Billy & Mandy
Season 7
Production code 714
Writer Jeremy Bargiel

Ian Wasseluk

Broadcast information
Cartoon Network US Premiere April 6, 2007
Paired with The Greatest Love Story Ever Told Ever
Chronological information
The Greatest Love Story Ever Told Ever
Billy & Mandy Moon the Moon
Detention X is 14th episode from season 7 of The Grim Adventures of Billy & Mandy.


When Billy gives his teacher an apple, she becomes sick and somehow Grim becomes the substitute teacher. He started sending naughty children to other dimension. Soon Mandy was the only student left. Grim tricked her and sender him also there. She founded her in a bench with all the children who had their head down. Billy told her not to make noise and keep her head down. She was going to ask Why? When suddenly a giant teacher came who had a magical scale. She told Mandy that she is in Detention Dimension. She punished Billy for talking to Mandy. He had to clean a duster. Mandy told her that this is not a punishment and told her that instead of cleaning dusters she should force him stand with a bundle of books on both the hand, as he will not be able to do anything we can expose his undergarments, make him stand with clowns and mailmans and to finish him off, some spiders on his face. When the teacher was thinking about this Mandy tricked her and send Grim to the Detention Dimension.


  • Story by: Jeremy Bargiel and Ian Wasseluk
  • Storyboard by: Ian Wasseluk
  • Directed by: Eddy Houchins & Matt Engstrom & Shaum Cashman


No Screenshot
The image gallery for Detention X may be viewed here.


  • Mandy breaks the 4th wall towards the end when before she escapes in the portal, she looks at the camera and says she may rescue everyone else in another episode.
  • The "book of the dead" text book that Grim has is a reference to the Necronomicon.
  • When Grim says the line "This is my doomstick" is a reference to the line "This is my boomstick" from the movie Army of Darkness.
    • In fact, when you see Mandy with "the book of the dead", it has the appearance as seen in the entire Evil Dead series.

The Greatest Love Story Ever Told Ever
Episodes Next:
Billy and Mandy Moon the Moon


Billy and Mandy Season 7 episode 8 The Greatest Love Story Ever Told Ever ~ Detention X20:33

Billy and Mandy Season 7 episode 8 The Greatest Love Story Ever Told Ever ~ Detention X

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