Vikings!

In one of Saturday's "all new episodes," Spongebob asked his dour and often sarcastic neighbor Squidward what a Viking might be, and got the following response:

"Listen closely now. The Vikings were a race of scholars and scientists who lived before even Mr. Krab was born. They are believed to have discovered ketchup, and enjoyed dressed up their pets as chunks of masonry on the weekends. Their favorite movies are in black and white, and grown Vikings are known to collect socks, which they display and trade at monthly sock-trading conventions called 'sockengarten.'"

Just a glimpse of the arcane knowledge to which only parents and children are normally privy.