If you're from Southeastern Pennsylvania you've probably seen this joke - if not probably not. If you don't know "Pennsylvania Dutch" are people who immigrated from Germany in the 17th century, mainly to Pennsylvania - the language is different from German (think if a colony of people speaking 17th century English went on in a foreign country picking up terminology from that country, coming up with their own terms for things that didn't exist in the old language, and the language evolving independantly then how different it would be from modern English. ) The name likely came from a misunderstanding of the German word for German "Deutsch" as Dutch.

Anyway, after the brief history lesson here it is:

A Pennsylvania Dutch farmer walking through his field notices a man
drinking from his pond, with his hand.

The Dutchman shouts:
"Trinken Sie nicht das Wasser, die Kühe und die Schweine haben in ihm geschissen!"

Which means: "Don't drink the water, the cows and the pigs have shit in it!"

The man shouts back: "I'm a Muslim, I don't understand your
gibberish. Speak English, infidel!"

The Dutchman shouts back in English:

"Use two hands, you'll get more!!"