high-muck-a-muck vs personage

high-muck-a-muck and personage both are nouns.

Word	Noun	Adjective	Verb	Adverb
high-muck-a-muck	Yes	No	No	No
personage	Yes	No	No	No

As nouns, personage is a hypernym of high-muck-a-muck; that is, personage is a word with a broader meaning than high-muck-a-muck:

high-muck-a-muck: an arrogant or conceited person of importance
personage: a person whose actions and opinions strongly influence the course of events

Other hypernyms of high-muck-a-muck include important person, influential person.

high-muck-a-muck (noun)	personage (noun)
an arrogant or conceited person of importance	another word for person; a person not meriting identification
	a person whose actions and opinions strongly influence the course of events