gulp vs gulper

gulp and gulper both are nouns.

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

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

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