bugger all vs Britain

bugger all and Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
bugger all	Yes	No	No	No
Britain	Yes	No	No	No

bugger all (noun)	Britain (noun)
little or nothing at all	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