ghetto blaster vs colloquialism

ghetto blaster and colloquialism both are nouns.

Word	Noun	Adjective	Verb	Adverb
ghetto blaster	Yes	No	No	No
colloquialism	Yes	No	No	No

ghetto blaster (noun)	colloquialism (noun)
a portable stereo	a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech