beggar-my-neighbour vs Australian spelling

beggar-my-neighbour and Australian spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
beggar-my-neighbour	Yes	No	No	No
Australian spelling	Yes	No	No	No

beggar-my-neighbour (noun)	Australian spelling (noun)
a card game for two players in which the object is to win all of the other player's cards	English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')