n. the beluga or white whale.
See also: white whale
- 1897  Aside from the walrus hunt, Mr. Spencer is developing a large porpoise, or white whale fishery, on the very shores of Churchill harbor, where, with his nets and traps, he took last season, one hundred and ninety of these mammals, of immense size.
- 1931  . . . the "porpoises" were thrashing the water in their furious chase on the shoals of herring and smaller fish that fled before them.