Alphabet Lore is an animated web series in which the letters of the alphabet are characters with their own personalities, and the lowercase letters are shown as younger, baby versions of the uppercase letters. Clips of their voices spread through short-form videos, edits and soundboards as fans reused favourite letters for alphabet-themed content. Baby y became a small favourite because the sound is instantly recognisable to viewers who know the series, while still working on its own as a cute, childlike reaction. It remains popular in learning videos and playful edits.