Babbling Beverage was a potion that caused the drinker to babble nonsense.

In 1995, when Dolores Umbridge had become Headmistress, Parvati and Padma Patil secretly brewed the potion and, with help from Harry Potter, used it on Umbridge's loudspeakers. This was just one of the many sabotages on Umbridge's reign.[1]

In 1996, Harry Potter, convinced that Sirius Black was in trouble at the Department of Mysteries, gave a cryptic warning to Severus Snape. Snape, pretending he did not understand, replied that he would use the potion if he wanted nonsense shouted at him.[2]


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