The beedo chant comes from the Despicable Me films, where Minions copy a siren with their voices during a fire alarm gag that fans clipped and shared from Despicable Me 2 in 2013. The clip spread on Vine, YouTube and soundboards because the sound alone explained the joke, even without the picture. It became a reusable shorthand for mock emergencies and is often grouped with the danger alarm sound effect meme online, returning whenever a creator needs instant, childish panic that everyone recognises in the first second.