"Monies," or alternatively, "moneys," is the term used by Irkens to refer to their form of currency, revealing that Irk has an economy and that they engage in trade negotiations with foreign planets. It is also suggested by the episode "Hobo 13" that the Irken currency itself is called "monies." Irken Monies have a picture of the current Almighty Tallest on them. This brings up the possibility that during the reigns of Almighty Tallest Miyuki and Spork, the Monies printed bore their respective likenesses. Also, they only appear to be in coin form, as a paper form has never been seen. In the episode "Mysterious Mysteries", Zim's side of the story stated that Dib demanded to him to give him his lunch "monies," and in "The Most Horrible X-mas Ever", Zim told a human in a Santa suit to "stop stealing all my monies!"