tabung noun English. Flat, large (up to ca. 1 m. long) saltwater and freshwater fish. Example sentence: Subanen. Ki tabung, ginis seda' dig dagat, laak megbenwa dadema di metebang tubig, muka' melembu' gupia. English. Tabung is a variety of ocean fish that also lives in fresh water, and is very fatty. Generic. seda'