A thing Dutch
people comment whenever they see anything remotely Dutch anywhere on the
internet.
Gekoloniseerd literally means 'Colonized', referring to the colonial history of The Netherlands. The suggestion is thus that similarly to how the Dutch spread across the globe to colonize far-away lands that they are still spreading, but this
time across the
internet. One can also view it as a simple statement of "The Dutch were here."
This tradition most likely started on the subreddit r/cirkeltrek on
Reddit. Reddit is still the place one is most likely to encounter a comment containing GEKOLONISEERD.
Gekoloniseerd is often spelled in such a way to draw as much attention as possible, with the aim to attract other Dutch visitors. e.g. "G E K O L O N I S E E R D". It therefore also isn't common for such a comment to start a chain of Dutch reactions and memes.
(Random video of picture of
anything remotely
Dutch)
Person 1: "Gekoloniseerd"
Person 2: "G E K O L O N I S E E
R D"
Person 3: "Zeg makker..."