|Cover artist||Terry Denton|
|Preceded by||Just Annoying!|
|Followed by||Just Crazy!|
Just Stupid! is the third book in the Just! series by Andy Griffiths. It contains various silly short stories, about things such as snail-shell repairing, baby pram riding, and nonsensical dreams.
The book won a BILBY Award in the Younger Readers category in 2000.
Andy is 'busting' for the toilet in a shopping centre. The story follows him as he rushes around trying to find a bathroom. The story culminates with the mall setting on fire, Andy using his urine to put it out and then waking up to discover it was all a dream and that he has wet the bed.
Andy attempts to be expelled from school so he does not have to attend anymore. However, his new teacher Mrs. Livingstone sees Andy's transgressions positively so Andy cannot get into trouble.
Andy tries to get revenge on Jen by being a Bogeyman under her bed and trying to scare her when Jen and her boyfriend Craig are in the room. However, first Andy encounters a spider and swallows it. He gets up from under the bed and tells Jen to call 0-0-0, but Jen realizes he has been spying on them and decides not to let Andy out of the room to tell his parents. The story ends with Andy vomiting the (still living) spider up, and terrifying both Jen and Craig.
Andy's friend Danny pushes him around in a stroller disguised as a baby. However, when Danny lets go of the stroller, he cannot keep up and Andy is sent flying through the town. Eventually, he flies out of the carriage onto an unfinished bridge, and ricochets off a trampoline in a person's backyard and dives into his father's boss's house nude. The two are displeased, so they call Andy's father.
The Griffiths (except Jen, who's at her boyfriend's birthday) and Danny are at a fancy restaurant and greet Natasha Teasedale, a famous actress. When Danny gives her flowers he knocks over the candle and it connects with Natasha's hair, setting it on fire. Andy throws beer on her hair and, without realizing there was a fire on her hair, Natasha gets angry at Andy. To make matters worse, her boyfriend Dirk Gibson comes back from the washroom and sees the two by her. Dirk erupts and fights with the two of them. Surrounding people then throw things at Dirk, and other people throw food at them. Eventually, everyone is throwing food, Danny, Andy's father, and Andy are still fighting Dirk, and in the middle of it, Natasha tells Dirk that she's leaving him. Dirk gives up out of frustration and Andy's parents find a different place to eat for the night. Andy's mother is disappointed with her son and husband.
After stepping on a snail and breaking its shell, Andy uses things he finds around the park to rebuild the snail's shell, while being attacked by a crazy black bird and getting annoyed by a gardener. At the end, the gardener gets so annoyed at Andy that he starts strangling him, until the black bird saves him by pecking the gardener in the head.
Andy gets bumped by a homemade Jack-in-the Box. And he loses his memory, vaguely recalling his name but being unable to remember his mother's. Danny tries to save him by making his brain big again, only to lose his own memory by getting hit by the homemade Jack-in-the Box. Andy's father loses his memory as well.
Andy acts like a child. He gets into trouble from Mr. Dobson by saying to Danny: "Cross this line and you're dead meat!" He gets sent to Mrs. Baxter's class in the Preps building and Andy has an argument with a Prep called Bradley.
While at Lisa's (Andy's crush) birthday party, Andy and Danny play a game of "Chubby Bubbies", where they see who can fit the most marshmallows in their mouth without swallowing or spewing. For her birthday, Andy gave Lisa a book about finding your perfect match through palm reading. While Andy and Danny are playing "Chubby Bubbies", Lisa asks Andy if she can see his palm. After reading his palm, she confirms that he is her perfect match, and he must now kiss her. When Andy is just about to kiss her, he feels the urge to sneeze (with the marshmallows still in his mouth). He tries to suppress the sneeze, but eventually fails and spits marshmallow paste on her cheek. After learning that he was playing "Chubby Bubbies", Lisa criticizes him for being immature, and telling him how big of a mouth he has. However, she tells him that it's not as big as hers, and with that, she sticks a marshmallow in her mouth and says, "One chubby bubbie."