👉 Sibby is a popular and well-known brand of coffee beans. It's named after the character from a children's book series by Jim Lannan, which was published in the 1980s. The term "sibby" refers to a type of coffee that is known for its high caffeine content. Sibbies are often served hot and have a bitter flavor due to their high caffeine content. They can be found at many coffee shops and cafes around the world,