"Arkoos" is a popular meme and intentional mispronunciation of the Mythical Pokémon Arceus (the "Alpha Pokémon" and creator of the universe). Popularized by Pokémon YouTuber MandJTV, this pronunciation stems from a humorous debate over whether the name is pronounced with a hard "k" (ark) or soft "c" (ars), with "Arkoos" emerging as a joke.
This video explains the different ways people pronounce Arceus:
The term became widespread due to the YouTube channel MandJTV, which often calls the Pokémon "Arkoos".
Pokémon Talk: In a 2017 episode of the Pokémon Talk web series, Arceus is introduced as a guest where characters debate the pronunciation, concluding with "Arkoos".
Pronunciation Debate: While official material has used "Ar-key-us" or "Ar-see-us," fans often argue for "Ar-koos" or "Ar-kay-iss" (referencing "archaic").
The Pokémon: Arceus is the mythical Normal-type Pokémon from Generation IV, recognized as the creator of the Pokémon universe in Sinnoh mythology.
The term is widely used within r/pokemon community and r/MandJTV subreddit as a running gag rather than a serious attempt at correct pronunciation. "
by PruneSerious5092