colloquialism vs man-sized

colloquialism is a noun but man-sized is not a noun.

Word	Noun	Adjective	Verb	Adverb
colloquialism	Yes	No	No	No
man-sized	No	Yes	No	No

colloquialism (noun)	man-sized (noun)
a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech

colloquialism (adjective)	man-sized (adjective)
	very large; appropriate to the size of a man
	calling for the strength of a man