jeju

noun1

1. •
   A South American (Amazonian) erythrinid fish, Hoplerythrinus unitaeniatus (formerly sometimes Erythrinus unitaeniatus).

   • Finally he sent the jeju (Erythrinus unitaeniatus; these fish are covered with a slippery phlegm), which pushed the man out ... — 1946

noun2

1. •
   An island, province, and city in South Korea.
2. •
   [plural only] An ethnic group native to the island.