I think everyone knows that British propaganda in WW2 used to help spread the belief that Hitler was short at least one testicle, but I hadn't realised that they were quite this creative until I stumbled across this 1994 article in The Independent:
That last bit sounds more like an attempt at humour, really. But Adolf Schicklegruber, I like that.Special Operations in London sent out to Gibraltar for distribution in Morocco boxed sets of gramophone records in Arabic making lewd suggestions about Hitler's anatomy....
A po-faced official on the staff of Lord Gort, the Governor of Gibraltar, says side one 'records the story of an Arab caravan journeying to Marrakech'. He bemoans the stagnation of trade in Morocco, and blames Hitler and the fact that British ships are detained in Moroccan ports. But by side two the official is becoming upset. 'It states that Hitler cannot marry and that he hates both Jews and Arabs with a 'fiery hatred' and explains the reason.
'Hitler is a bastard - presumably of Jewish blood - and his original name was Schicklegruber. Some 30 years ago he was but a humble house-painter when one day he was painting the ceiling of a synagogue and fell and damaged one of his testicles]'
The doctor, trained by an Arab, is a former violinist used to giving encores, so when he is applauded for taking off the first testicle, he repeats the performance.
It's also hard not to be amused by the next part of the article:
The second story has Hitler being visited in his bedroom by Mrs Goebbels, who is shocked to find the Fuhrer has gone to the front to have sex with his generals. The official says in his report to Lord Gort that the Arabs would be likely to be impressed rather than shocked by such behaviour.