Both are used[1]. TL;DR: due to the influence of Japanese, it seems that most people who are familiar with Japanese will use its default form -i. As this loan

Both are used[1]. TL;DR: due to the influence of Japanese, it seems that most people who are familiar with Japanese will use its default form -i. As this loan word starts to become more prominent in the English language, the classic plural form -s should gain in popularity, such as it has been the case with ninjas or haikus. [1] https://www.theatlantic.com/technology/archive/2016/01/whats-the-plural-of-emoji-emojis/422763/ https://www.theatlantic.com/technology/archive/2016/01/whats...