hunch forward vs hunch

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

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

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

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

Other synonyms of hunch forward include hump, hunch over.

hunch forward (noun)	hunch (noun)
	the act of bending yourself into a humped position
	an impression that something might be the case

hunch forward (verb)	hunch (verb)
round one's back by bending forward and drawing the shoulders forward	round one's back by bending forward and drawing the shoulders forward