F.L.U.D.D.

==Canon in Mario series==
The Flash Liquidizer Ultra Dousing Device, abbreviated and better known as FLUDD or F.L.U.D.D., is a multipurpose water pack from Super Mario Sunshine invented by Professor E. Gadd. It features a water tank, two handles, and four interchangeable nozzles. It is possible that F.L.U.D.D. is Mario's equivalent of the Poltergust 3000 used by Luigi. In Super Mario Sunshine only, F.L.U.D.D. is also shown to have an artificial intelligence and is able to communicate with Mario and any other characters by speaking through the nozzle. F.L.U.D.D.'s name is a play on the word "flood," meaning a large mass of water that often causes chaos in a public area.
==Canon in Mushroom City Car Wash==
F.L.U.D.D. is a multipurpose water pack invented by Professor E. Gadd. It has been used by Mario in some of his adventures. After making many minor appearances throughout 2019, it would get a role in the Vaction arc. Before Toadette and the others went to Isle Delfino for their summer vacation, they knew that they needed something that could help them clean up the graffiti that the Inklings and Octolings had created to help Velo and his champions in taking over the island. Once they arrived at E. Gadd's laboratory, they saw that he and Mario were testing the device to see if it functioned properly. After they finished testing it, E. Gadd gave the device to Toadette, who would go on to use it during the vacation to clean up the graffiti and save Isle Delfino. After the vacation arc, it has not made another appearance, though it has been presumed to have been brought back to E. Gadd's lab, as Toadette and co. only wanted to borrow the device to help them save the island and promised to return it once the vacation was over.