We all have this bloke or colleague who is very slow and has a very common name like Joe, John or, for example, Jan.
If you then combine the familiar 'Duurt Lang' with Jan - you get DuurtJan!
Me: Hey, we're still waiting for our coffee!
Jan: I'll be there in a couple of minutes.
Me: DuurtJan!
The Dutch are known for various things; weed, Heineken, the red-light district but also that they complain a lot; at least that is what we experience, ourselves.
We all know this guy who is complaining all-the-effing-time. Sometimes he's called Joe, sometimes he's called James and sometimes he's called Joost - and so is ours.
Do keep in mind that this guy, most probably, does not have anything to do with Joost.
Joost: It's raining all day already, the sun is not bright enough and workload is too high!
Colleague: Stop complaining.
Joost: And wait until it's next week, then we don't have any thing to do for project X anything anymore - and the customer doesn't even bother...!!
...
Another colleague walks in and says: Oh boy, is he Joosting again?