gulper vs gulp

gulper and gulp both are nouns.

Word	Noun	Adjective	Verb	Adverb
gulper	Yes	No	No	No
gulp	Yes	No	Yes	No

gulper (noun)	gulp (noun)
a drinker who swallows large amounts greedily	a large and hurried swallow
	a spasmodic reflex of the throat made as if in swallowing

gulper (verb)	gulp (verb)
	utter or make a noise, as when swallowing too quickly
	to swallow hurriedly or greedily or in one draught