I recall National Lampoons "Unwanted Foreginors" edition from 76 describing the Brits as " a bunch of pasty-faced faggots wth bad teeth that boil everything, including their bread."
Not to mention Rowan Atkinson in "Black Adder". The one skit where he lands the phone booth/ space ship on Lord Wellington (Stephen Fry) to steal his boots almost killed me due to lack of oxygen from laughing so hard.