Yes, Drupal is an unusual name. Why was it chosen? Dries chose the name Drupal because the domain name was available. That sounds like a joke, but it’s partially true. The name went through three variations: First, Dries, the founder of Drupal, originally wanted to call the project “dorp,” which is Dutch for village. Second, when he went to register the domain name, he typed “drop” by accident and so registered drop.org. Finally, Dries released his software as “Drupal,” which is a misspelling of the Dutch word “druppel,” which means drop. Drupal is often mispronounced. The correct way to say it is “Droo-puhl.” The “drop” meaning of Drupal influenced the mascot. The overall mascot looks like a drop. The two eyes in the middle were also originally designed as two drops to look like the infinity symbol. The design looked so much like a face that a nose and mouth were added.
excerpted from Burge, Stephen (2013-05-15). Drupal 7 Explained: Your Step-by-Step Guide. Pearson Education.