Hormel Foods' canned mystery meat did not actually inspire the use of the word spam to describe unwanted junk email, rather it was a specific Monty Python sketch from 1970.

How a café sketch gave junk email its name

The word spam became a metaphor for unwanted email through a comic scene built around interruption. In a 1970 Monty Python sketch, diners in a café try to order from a menu dominated by Spam, the canned meat. A group of Vikings keeps chanting the word, growing so loud that ordinary conversation becomes difficult. The joke is not merely repetition: the chant crowds out everything else.

That made the sketch a useful image for a problem taking shape online. As internet users began encountering unsolicited messages, those messages could arrive in bulk and overwhelm the communication people actually wanted. Calling them spam captured the experience of having a conversation drowned out by persistent noise.

From comic repetition to digital shorthand

The term did not describe a technical feature of email. It was a metaphor borrowed from popular culture: a reference to excessive, unwanted repetition. In online settings, the label came to cover messages sent to people who had not asked for them, especially when the volume made useful communication harder to find.

The canned meat supplied the sketch’s central gag, but it was the Vikings’ relentless singing that connected the scene to junk messages. The name stuck because it described what unwanted email does to an inbox: it takes up space and attention until the messages that matter are harder to hear.