Memetic Badass: England survived both the Hitori Kakurenbo game and the Labyrinth experiment— the latter of which he was able to outlast The Condesce— was able to keep sane when he had everyone's powers after the events, and had a verbal spar with Jason over the network. It took a game-show and some pity votes to finally get him to die. Now with fanart.◊
The OU versions of Eikichi, Jun, and Tatsuya from Persona 2 are known as "The Three Stooges".
The playerbase jokingly refers to the game itself as "Animoose" or simply "Moose". Recently, Romeo was turned into a monster moose by Jason. Enjoy your mascot, Tower!
Captain Cinnamon Claws haunts the living memories of anyone who participated in the Hitori Kakurenbo event. There's a variety of bear emotes to represent him, as well: ʕ ᵒᴥᵒʔ is just one of such emoticons.
The game itself is often called "Tower of Sadimus" by its playerbase.
Various "team names", including Team Girl Power, Team NOLO, and Team Science. Many of these came out of the Massive Infiltration Plot.
'Punching Jason' and variants ('sniping Jason', 'kicking Jason', etc.) became a common fixture. Shortly afterward, Ruana took 'slapping Jason' and made it canon. Made even more canon in Something Unexpected when Feferi, Gamzee, Meiling and Tavros broke into his room and got asked why they were down there - he knew they were down there to punch him in the face!
During the Rebellion event, Xion (while brainwashed and malfunctioning) cut off Riku Replica's arm. While the two have made their peace with it, the Tower seems hell-bent on reminding her of what she did. Arms and missing arms seem to keep turning up everywhere: her mailbox, the job she awoke to doing during Cognizance, even her 7th death penalty.