fug vs colloquialism

fug and colloquialism both are nouns.

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

fug (noun)	colloquialism (noun)
(British informal) an airless smoky smelly atmosphere	a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech