crapper vs potty

crapper and potty both are nouns.

Word	Noun	Adjective	Verb	Adverb
crapper	Yes	No	No	No
potty	Yes	Yes	No	No

As nouns, crapper and potty are synonyms defined as:

Other synonyms of crapper include can, commode, pot, stool, throne, toilet.

crapper (noun)	potty (noun)
a plumbing fixture for defecation and urination	a receptacle for urination or defecation in the bedroom
	a plumbing fixture for defecation and urination

crapper (adjective)	potty (adjective)
	slightly intoxicated
	marked by foolish or unreasoning fondness
	(British informal) trivial