noun. a person whose back is humped in a convex position because of abnormal spinal curvature. Compare kyphosis, kyphoscoliosis.

What does hunchback refer to?

: a back in which the spine is curved in an abnormal way. : a person with a hunchback.

What does it mean when you hunch someone?

1 : an act or instance of pushing someone or something in a rough or careless manner : an act or instance of hunching (see hunch entry 1 sense transitive) give him a good hunch with your foot— Abraham Tucker.