just something i saw online:

In case you didn't know, a hamburger is not ham + burger. It's Hamburg (the German city) + -er. It has always been made of beef. I've even seen a TV programme where they visited the first hamburger shop in the states, and it was made of ham (pork)! OMFG! What a bunch of idiots! Oh, and while I'm at it, french fries weren't invented in France.