As nouns the difference between douchiness and doucheness
is that douchiness is (slang|derogatory) the quality of being douchey or douchy; objectionableness while doucheness is (slang) stupidity; jackassery.
douchiness
English
Noun
(-)
(slang, derogatory) The quality of being douchey or douchy; objectionableness. doucheness
English
Noun
(-)
(slang) stupidity; jackassery