green cod
/ˌɡriːn ˈkɒd/noun
1Cod (Gadus morrhua) which has recently been salted and is still moist. Also green codfish. Compare green fish. Now historical.
2The saithe or coalfish, Pollachius virens, or the young of this. Later also: the pollack, P. pollachius.
3 North American. The lingcod, Ophiodon elongatus (family Hexagrammidae), of the north-east Pacific. rare.
Origin
Early 17th century; earliest use found in Pierre Erondelle (fl. 1586–1609). From green + cod.