hunch forward vs hump

hunch forward is not a noun while hump is a noun.

Word	Noun	Adjective	Verb	Adverb
hunch forward	No	No	Yes	No
hump	Yes	No	Yes	No

As verbs, hunch forward and hump are synonyms defined as:

hunch forward and hump: round one's back by bending forward and drawing the shoulders forward

Other synonyms of hunch forward include hunch, hunch over.

hunch forward (noun)	hump (noun)
	something that bulges out or is protuberant or projects from its surroundings

hunch forward (verb)	hump (verb)
round one's back by bending forward and drawing the shoulders forward	have sexual intercourse with
	round one's back by bending forward and drawing the shoulders forward