malarkey vs malarky

malarkey and malarky both are nouns.

Word	Noun	Adjective	Verb	Adverb
malarkey	Yes	No	No	No
malarky	Yes	No	No	No

As nouns, malarkey and malarky are synonyms defined as:

Other synonyms of malarkey include idle words, jazz, nothingness, wind.

malarkey (noun)	malarky (noun)
empty rhetoric or insincere or exaggerated talk	empty rhetoric or insincere or exaggerated talk