Examples from the Web for finback
Browne reminds us of the 2001 encounter between an American EP-3E surveillance aircraft and a Chinese "Finback" fighter jet.
Now, a finback is built more for speed an' has a big fin on the back—that's where it gets its name.
What's the difference between a 'finback' and a 'humpback,' Hank?
W'en I uz young 'n foolish, a finback range 'longside me one day, off de Seychelles.The Cruise of the Cachalot|Frank T. Bullen
The big sulphurbottom is a kind of finback, an' is the largest animal livin'.