- "These contraband items are useful for clearing a room. "
A Dungbomb is a magical stink bomb that gives off a putrid odour. Dungbombs were invented in the 1800s by Alberic Grunnion. When handled, Dungbombs leave a person's hands dirty. They are sold at Gambol and Japes Wizarding Joke Shop, priced at one Sickle and twenty-one Knuts each.
Despite (or perhaps due to) Filch's dislike of them, students use them at school, most notably in 1996 in the aftermath of Fred and George Weasley's departure. The Weasley twins once set a Dungbomb off under their Auntie Muriel's chair, leading her to never visit again, and she subsequently wrote them out of her will. In their first year at Hogwarts, the twins set off a Dungbomb and incurred Filch's wrath. Sent to his office, they discovered the Marauder's Map and George caused a distraction by dropping a second Dungbomb so that Fred could nick the map.
In 1995, Nymphadora Tonks also taught Ginny Weasley to test a door for an Imperturbable Charm, by checking if Dungbombs bounced away after being flicked at the door in question. Later that same year, Filch accused Harry Potter of using an owl to order Dungbombs, when he was actually sending a secret letter to Sirius Black, and Harry truthfully denied it.
In 1996, as the tyranny of Dolores Umbridge reached a new level with her becoming Headmistress, the students of Hogwarts revolted en masse, and Dungbombs and Stink Pellets were dropped in the halls with such frequency that it became the new fashion for students to use the Bubble-Head Charm just to ensure that they had a supply of fresh, clean air.
Students are constantly reminded that dungbombs are banned items at Hogwarts School of Witchcraft and Wizardry by Dumbledore, though only at the request of Filch.
- Harry Potter and the Philosopher's Stone (First mentioned)
- Harry Potter and the Philosopher's Stone (video game) (First appearance)
- Harry Potter and the Chamber of Secrets (video game)
- Harry Potter and the Prisoner of Azkaban
- Harry Potter and the Prisoner of Azkaban (video game)
- Harry Potter and the Goblet of Fire
- Harry Potter and the Order of the Phoenix (Mentioned only)
- Harry Potter and the Order of the Phoenix (video game) (Mentioned only)
- Harry Potter and the Half-Blood Prince (video game)
- Harry Potter and the Deathly Hallows (Mentioned only)
- Fantastic Beasts and Where to Find Them (Mentioned only)
- Harry Potter Trading Card Game
- Harry Potter: Hogwarts Mystery
- Harry Potter: Wizards Unite