two-waymigrantfish
nounUK /ˌtuː weɪ ˈmaɪɡrənt fɪʃ/
US /ˌtuː weɪ ˈmaɪɡrənt fɪʃ/
A fish that swims back and forth between two places.
The salmon is a two-waymigrantfish that swims from the sea to the river and back again.
OTHER MEANINGS
2. A fish that travels between fresh water and salt water during its life.
Scientists tagged the two-waymigrantfish to track its journey between the lake and the sea.
3. Any animal that regularly moves between two habitats.
The two-waymigrantfish of the wetlands moves between the marsh and the open water each season.
4. A person who regularly travels back and forth between two places, used humorously.
My uncle is a real two-waymigrantfish, driving between the city and the farm every week.