 | This article consists almost entirely of a plot summary. (June 2009) |
 | |
| Author | Andy Griffiths |
|---|---|
| Illustrator | Terry Denton |
| Language | English |
| Series | Bum trilogy |
| Genre | Children's novel |
| Publisher | Pan Books |
Publication date | 2001 |
| Publication place | Australia |
| Media type | Hardback book |
| Pages | 150 |
| ISBN | 0-330-36292-5 |
| OCLC | 53902628 |
| Followed by | Zombie Bums from Uranus |
The Day My Bum Went Psycho is a novel for children by Australian author Andy Griffiths. "Bum" is a slang word used in many English-speaking countries for the buttocks; in North America the term "butt" is used instead, and the book is published there under the title The Day My Butt Went Psycho.
It is illustrated by Terry Denton, who also illustrated some of Andy Griffiths' other books, including the Just! series.
The Day My Butt Went Psycho! is a Canadian-Australian animated television series loosely based on the novel, and its sequels, first shown on Australian channel Nine Network in September 2013 and on Canadian channels Teletoon and Télétoon in June 2014 which is criticized for its bad animation, puns and butt jokes.