Question: What is the link between the canned meat product Spam and the kind of spam you get in your inbox?
Answer: A Monty Python’s Flying Circus sketch! In it a diner full of Vikings chant a song about spam that drowns out attempts at meaningful conversation, much to everyone’s frustration. The technique was adopted quite literally by early internet chatroom trolls. The original sketch can be viewed here (fair warning for high-pitched voices and a moment of cross-pollination with a rather ruder sketch from earlier in the episode.)