What does Tudum mean? How do you even pronounce Tudum? The strange word is used as the name of Netflix's website where they promote their movies and series. It's also the name of the annual Netflix festival that is held in Brazil every year. The meaning behind the word Tudum will likely surprise you, unless you've already figured it out, in which case it makes perfect sense. I explain the definition of the Netflix word and attempt to pronounce it.