Oompa Loompas are small fat elves that work for Willy Wonka. They are a group of freaks that will stop at nothing to... they don't really know what they're doing, as long as they're fighting for SOMETHING. Some people confuse them for Donald Trump.
The Oompa Loompas originally lived in Loompaland. After things became too dangerous for them, another opponent entered the area. Willy Wonka was there to kill various animals,
and make them into candy. Then, he found the Oompa Loompas, and drew his sword. The king of the Oompa Loompas told Willy Wonka to spare them, or suffer their wrath. He attacked, but they shot an Energy Blast at him. He used the sword to destroy their energy blasts, and they reluctantly surrendered.
During their childhood, the STUPID Oompa-Loompas had to invent an extremely annoying song to kill the Go Compare Guy and they succeeded.
Willy Wonka took the Oompa Loompas as his evil minions, and they started working in his factory. He forced them to test some of his most dangerous creations to make sure they were lethal enough. He kept them as slaves for centuries.
Some of the Oompa Loompas eventually fought back, developing the ability to Blow Stuff Up. They blew up Willy Wonka's chocolate factory, but then he had it rebuilt, and they were returned to Loompaland. They all died there because they had all forgotten how to escape Loompaland Monsters.