a club composed of the AU where there's only dust AU character.for example,Spongedustswap is a mix between spongetale (Patrick = Sans),Underswao (role reversed,in that case,Papyrus reverse with Sans so Pateicl reverse with Spongebob) and dust (murderer) meaning that in dustspongeswap,the murderer is Spongebob.there's also other mix possible.an infinitt to be excact.