colloquialism vs fogey

colloquialism and fogey both are nouns.

Word	Noun	Adjective	Verb	Adverb
colloquialism	Yes	No	No	No
fogey	Yes	No	No	No

colloquialism (noun)	fogey (noun)
a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech	someone whose style is out of fashion