They are served in a brown box with a handle. Unlike the one in "Chum Caverns," they do not resemble chicken nuggets, rather it is fish organs combined with chum slop.
Role in series
"Chum Bucket Supreme"
Plankton's sign "Chum is Fum" attracts many customers. The customers cannot resist the name or the slogan and continue to eat chum nuggets despite their repulsive taste.
Customers hate the taste, but due to the decor of the Chum Caverns, they cannot resist eating the chum nuggets.
Plankton tries to offer some chum nuggets to impatient customers waiting in line for the Krusty Krabdrive-thru, but after an old fish runs him over twice, Plankton says that his arm will fall off while advertising the nuggets.