a pink salmon inhabiting North Pacific waters: so-called because of the hump that appears behind the head of the male when it is ready for spawning.
Words nearby humpback salmon
Origin of humpback salmon
An Americanism dating back to 1800–10
Also called humpy, humpie.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020