snap up vs hog

snap up is not a noun while hog is a noun.

Word	Noun	Adjective	Verb	Adverb
snap up	No	No	Yes	No
hog	Yes	No	Yes	No

As verbs, hog is a hyponym of snap up; that is, hog is a word with a more specific, narrower meaning than snap up:

snap up (noun)	hog (noun)
	domestic swine
	a sheep up to the age of one year; one yet to be sheared
	a person regarded as greedy and pig-like

snap up (verb)	hog (verb)
get hold of or seize quickly and easily	take greedily; take more than one's share