Smitty is tall, slender, and buck-toothed with curly orange hair, pink nose, and freckles. He wears both white beanie and shirt with lime stripes on each of them, blue jacket with red innards, blue pants with a red patch on his pants, and brown shoes. It is also noted that he has large ears like Dumbo.
Smitty is an dimwitted and insensitive boy who delights in poking fun at Dumbo due to his large ears. He is very arrogant, calling the baby elephant "the funniest thing you ever saw", in order to look good in front of his friends, who were teasing Dumbo as well. Smitty is also very stubborn, taking his taunting too far, from flapping his jacket at Dumbo to imitate his ear-flapping to soon getting physical by yanking at his ears. It is this that provokes Dumbo's mother Mrs. Jumbo into attacking the bratty boy and driving away the other bullies to protect her son, only to be sadly misunderstood by the Ringmaster, who ordered her incarcerated only to keep her from harming visitors who weren't involved.
Smitty is shown to be something of a hypocrite; he teases Dumbo for his large ears, despite having rather large ears himself, not nearly as big as Dumbo's, but still rather large for a teenage boy. He is also not very bright, as he was surprised when Mrs. Jumbo got mad at him and attacked him after everything he did to her son.
When Smitty and his gang see Dumbo, the other boys immediately start laughing at Dumbo while Smitty makes fun of his large ears and taunting him. Poor Dumbo, being just an infant, does not understand that the Brat has cruel intentions, and thinks it is a game, so he makes faces back at him. Uttering the rallying cry of the stupid- "Nyah! Nyah!" - he initially taunts Dumbo by holding up his own jacket in imitation of the little elephant's big ears. Later, after Mrs. Jumbo, Dumbo's mother, tries to hide Dumbo from the bullies, he illegally enters the pen, drags Dumbo from under Mrs. Jumbo by his tail, blows in one of his ears, and then, most sadistically of all, finds humor among his peers when he stretches one of Dumbo's ears out as far as it will go before letting it go suddenly - an agonizing trick. Mrs. Jumbo grabs Smitty as he tries to run away and spanks him and goes on a rampage. Smitty is not seen again throughout the rest of the film after getting spanked by Mrs. Jumbo. Or likely he got in big trouble.
Smitty appeared in another Dumbo book from Golden House Books. In the book, Smitty makes fun of Dumbo when the little elephant trips and falls into the mud during the parade scene. When he calls Dumbo a 'klutzy elephant' Mrs. Jumbo loses her temper and grabs the boy by the scruff of his shirt and shacks him, making his candy and hat fall off. When he cries for help, the ringmaster puts Mrs. Jumbo in solitary confinement. Later, Smitty is being made fun of by the other kids who call him a crybaby for being grabbed by an elephant. Smitty storms off both mad and sad for being bullied by his peers. But then, he meets Timothy the mouse around the tents at the circus, he gets a lecture about being a bully and how it's wrong. Timothy then tells Smitty that Mrs. Jumbo was only trying to protect her baby from him and he points to Dumbo who is all alone, being teased by the other elephants.
Realizing his mistake, and learning a lesson about bullying, Smitty goes to the Ringmaster and tells him that he made a mistake about Mrs Jumbo.
In the end, Smitty is riding on Dumbo in the parade with Mrs Jumbo behind them.