United Kingdom of Great Britain and Northern Ireland vs sweet Fanny Adams

United Kingdom of Great Britain and Northern Ireland and sweet Fanny Adams both are nouns.

Word	Noun	Adjective	Verb	Adverb
United Kingdom of Great Britain and Northern Ireland	Yes	No	No	No
sweet Fanny Adams	Yes	No	No	No

United Kingdom of Great Britain and Northern Ireland (noun)	sweet Fanny Adams (noun)
a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom	little or nothing at all