The Mini-Jokeys were a bunch of magically created Smurfs that were created when Jokey opened a surprise package full of blue magic powder made of Dragon Drool that was assembled by Vanity in the 2021 cartoon show episode "Joke's On You". They were a self-replicating bunch of little Smurfs that increased in number whenever one of them opened their surprise boxes, and like Jokey loved to cause trouble among the other Smurfs by pulling pranks on them, even to the point of where they rebelled against Papa Smurf.
In the episode, the mini-Jokeys wreaked havoc throughout the Smurf Village until Papa Smurf got a hold of both Jokey and Vanity and told them to get those little pranksters under control. Unfortunately, the mini-Jokeys decided to rebel and tied up Jokey and Vanity to mushrooms while they gathered Papa Smurf and tied him up to a rocket which they intended to launch into the sky. However, as Jokey and Vanity attempted to escape captivity to return to the village, they ran into Gargamel, who was directed by Jokey toward where the mini-Jokeys were gathered outside the village. Gargamel gathered all the mini-Jokeys that he could and stuffed them inside his bag, but the mini-Jokeys inside the bag kept multiplying until they all exploded, causing Gargamel to fly out of control. Papa Smurf, Jokey, and Vanity managed to escape the explosion by riding the rocket to safety.
All of the Mini-Jokeys are voiced by Kaycie Chase, who also voices the real Jokey, with all of the Mini-Jokey’s’ voices pitched up to sound miniature.