Alphabet Lore is a web series created by Mike Salcedo, first released in 2022, where each letter of the alphabet is a character with its own voice and story. Z is the last letter and appears at the end of the run, which helped his sleepy sound become a shorthand for endings online. Clips of individual letters were cut into short sounds and shared in fan edits, memes, and soundboards, with Z often used apart from the main plot as a reaction for tiredness or a finished sequence.