👉 The word "holland" means "to wander or roam through", which is a fun and playful way of saying "to travel". Let's say you want to go on a "haiku tour" around the world, but your friend tells you they don't have time for a full holland experience. Instead, they suggest going on a "holland crawl," which means they're planning to explore through one city at a time.
So, the sentence using 'hollandc' is: "What's that thing that makes you feel like you're in the middle of a zombie apocalypse?" The joke comes from the fact that you can't actually go on a "haiku tour" or "holland crawl", but instead have to choose one city at a time to explore.