Double Dutch

This video begins with two Dutch sayings:

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There's a saying in Dutch: "God schiep de Aarde, maar de Nederlanders schiepen Nederland".

Another saying in Dutch is: "Wij smachten naar achtentachtig prachtige nachten bij achtentachtig prachtige grachten".

Today's program is about how the Netherlands picked a fight with the sea, and won.

The first saying means "God made the world, but the Dutch made the Netherlands". It summarizes the video's topic, which is when, how, and why "roughly 17% of the whole country has been conjured out of thin water."

The second? It's explained and analyzed by three of the comments on the video:

Commenter 1: "Wij smachten naar achtentachtig prachtige nachten bij achtentachtig prachtige grachten" translates roughly to "We long for eighty-eight beautiful nights by eighty-eight beautiful canals" it is a relatively famous dutch tongue twister…

Commenter 2: Meanwhile in not-Dutch it sounds hilariously fake

Commenter 3: yeah I fully thought he was just making noises

Commenter 4: That's how talking works usually.

As far as I can tell, the second saying was just added to the script for fun.

And as for this post's title, there's actually a connection beyond the two guys performing two Dutch sayings. As Wikipedia explains

Double Dutch is a game in which two long jump ropes turning in opposite directions are jumped by one or more players jumping simultaneously.

It is widely acknowledged that modern Double Dutch originated in the United States among girls in predominantly Black urban communities during the 1940s and 1950s, who congregated on street corners to display new tricks and repurposed clotheslines as ropes. […]

Although it is popularly claimed the activity was brought to America by Dutch settlers, the term "double Dutch" itself has long existed in English slang, where it originally referred to incomprehensible speech or nonsense, reflecting historical English views of the Dutch language as confusing or strange. Phrases such as "in Dutch," meaning to be in trouble, further illustrate this pejorative connotation. The use of the term "double Dutch" for the game reflects the visual complexity and perceived challenge of the jump-roping, similar to the confusion implied by the idiom.

[h/t Geoff Dawson]