pouter vs gloomy Gus

pouter and gloomy Gus both are nouns.

Word	Noun	Adjective	Verb	Adverb
pouter	Yes	No	No	No
gloomy Gus	Yes	No	No	No

As nouns, pouter and gloomy Gus are synonyms defined as:

pouter and gloomy Gus: someone with a habitually sullen or gloomy expression

Other synonyms of pouter include picklepuss, sourpuss.

pouter (noun)	gloomy Gus (noun)
one of a breed of pigeon that enlarge their crop until their breast is puffed out	someone with a habitually sullen or gloomy expression
someone with a habitually sullen or gloomy expression