Contrary to popular belief, plumbus is not used as a personal massager/sensory stimulator, as its manual explicitly says that applying it to sensory organs can cause trauma or death.

Plumbus has limited locomotion and can autonomously move around the house, even climbing ladders, cleaning the floor without the owner's participation.

Plumbus is able to receive radio waves and convert them to sound, even recording and playing them back, so it can be used as a radio and/or receiver.

Plumbus can secrete various agents from itself and has adaptive rubbing surfaces, making it useful for cleaning.

Plumbus can generate and store vast amounts of heat, allowing it to be used for cooking, ironing or just heating the room.

However, as the show marched on, a few clues appeared to its purpose: Originally plumbus was conceived by the show's creators as a device alien and ridiculous with no clue on what it actually does, apart from that every home has it. One of the aliens that work at the plumbus factory are Blamphs, and another is a Schlami. The Plumbus can be combined with other items to create different colors of Plumbus. In Rick and Morty: Virtual Rick-ality, Rick has a Plumbus in the garage. Morty/Plumbus protein strands can cause mutations to occur in Mortys such as Plumbus Prawn Morty.

Repurposed Fleeb Juice, combined with tight spaces, can cause a Morty/Alien hybrid such as Plumbonia Morty. Working in a factory is very dangerous for a Morty. Known employees are Plumbus Slave Morty, Plumbus Worker Morty, Plumbus Master Morty, Plumbus Prawn Morty, and Plumbonia Morty. They use Mortys for maintenance and other menial tasks. Plumbuses are created in a factory on Plumbubo Prime 51b. According to Stealy, Plumbuses are worth six-and-a-half Brapples. It is described as a common household and office item that is also used as an accent piece to a room. First, when Stealy stole one from a workplace and again in an episode of 'How They Do It' that shows the viewers how plumbuses are made.

It was first shown in the episode, ' Interdimensional Cable 2: Tempting Fate' where it was seen twice on the Interdimensional TV. Everyone in the Rick and Morty universe knows what it does, so nobody ever explains how it works.

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