Why is blue humour so called?
Why is the colour blue used to describe a certain type of humour and film? Why is it a synonym for rude? I want to know as I'm very interested in comedy!
Qualification: I've got a letter from my father during the war.
Answer: It's from the censor. I think it originated in the Second World War, all letters sent back home were censored and they were always crossed out in blue. So it starts with all blue things are things that are censored.
(James O'Brien: But surely these films and jokes are not censored?)