beef vs beefalo

beef and beefalo both are nouns.

Word	Noun	Adjective	Verb	Adverb
beef	Yes	No	Yes	No
beefalo	Yes	No	No	No

As nouns, beefalo is a hyponym of beef; that is, beefalo is a word with a more specific, narrower meaning than beef:

beef: cattle that are reared for their meat
beefalo: hardy breed of cattle resulting from crossing domestic cattle with the American buffalo; yields leaner beef than conventional breeds

beef (noun)	beefalo (noun)
cattle that are reared for their meat	hardy breed of cattle resulting from crossing domestic cattle with the American buffalo; yields leaner beef than conventional breeds
informal terms for objecting
meat from an adult domestic bovine

beef (verb)	beefalo (verb)
complain