OK. The Freepers will just have to be left in the dark. LOL.
OK. I'll give up the historical secret. Berliners do call themselves Berliners. But a "Berliner" is also the name given to a popular German Jelly Donut.
So when Kennedy gave his famous speech ("Ich bin ein Berliner") the story went around and is still going around that the Germans interpreted this as "I am a Jelly Donut".
There is no question as to what Kennedy said but the fact that the Germans hearing the speech would be laughing rather than applauding Kennedy's pronouncement is in dispute. In fact, it is rather in doubt.
Do a Google search (on "donut Ich bin ein Berliner") and you can read all about it.