3. Homer Mishears Mayor Quimby
In the season three episode Burns Verkaufen der Kraftwerk, a German company purchases Springfield's nuclear plant and Mayor Quimby delivers an address to welcome them to the town.
"Ich bin ein Springfielder," he says during his speech. Over in the crowd, Homer responds by murmuring "Mmm... Jelly donuts."
Now, to understand this reference you need to know your American history. Mayor Quimby's speech evokes JFK's famous West Berlin address of 1963. There was a false rumour at the time that the former US president botched his German and accidentally called himself a traditional German fried pastry with marmalade filling.
Homer wasn't absentmindedly dreaming about desserts again here. He was lampooning a rumour about President Kennedy. Mmm... political satirical.