Teitoku is the Japanese word for admiral, and its use as a direct address was popularised by Kantai Collection, the 2013 browser game and later anime where players command anthropomorphised warships known as ship girls. Characters in the franchise regularly speak to the player as Teitoku, which turned the greeting into shorthand within anime fandom. Short voice clips of the call circulated on soundboards and in fan edits, where this brief version became a reusable greeting, alert and in-joke for viewers who recognise the reference instantly.