colloquialism vs shooting gallery

colloquialism and shooting gallery both are nouns.

Word	Noun	Adjective	Verb	Adverb
colloquialism	Yes	No	No	No
shooting gallery	Yes	No	No	No

colloquialism (noun)	shooting gallery (noun)
a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech	an enclosed firing range with targets for rifle or handgun practice
	a building (usually abandoned) where drug addicts buy and use heroin