PANews reported on December 31 that Musk changed his personal profile picture and nickname on the X platform to Kekius Maximus.

According to Grok, "Kekius Maximus" is a word that combines Internet culture and ancient Roman naming traditions. The "Kek" here comes from Internet slang, which is common in meme culture, especially in the 4chan community, where "kek" is used as a substitute for "LOL" to express laughter or humor. "Maximus" is Latin, meaning "biggest" or "greatest", and is common in Roman names, such as "Maximus Decimus Meridius". Combining these two elements, "Kekius Maximus" may be used to refer to a person who is considered the "greatest" or "biggest kek" in Internet culture, or as a humorous, exaggerated title. Kekius Maximus does not have a strictly defined meaning.