It consists of buns and is very sloppy and meant to be disgusting, as it contains Plankton's chum, which no one in Bikini Bottom is willing to eat. The ingredients in the chum consist of a band-aid, bomb fuse, and duct tape.
Role in episode
This "Krabby Patty" is made by Plankton in an attempt to make everyone despise the real Krabby Patties and to not give their business to the Krusty Krab. When everyone eats it, they get sick and begin to hate Krabby Patties. However, SpongeBob sells the real ones, calls them new, and everyone likes them again, much to Plankton's dismay.