Definition of bluenoses:
(n) :
(slang) A native or inhabitant of the province of Nova Scotia, Canada.
(n) :
(informal) A prude.
(n) :
(derogatory) Used among Roman Catholics for a Protestant (specifically Puritan).
(n) :
(slang) A follower of Everton Football Club.
(n) :
(slang) A follower of Birmingham City Football Club.
(n) :
(US, naval slang) A person who has crossed the Arctic Circle.