Mmmh, just thought of something. If you have:
1) Someone saying "Poland" with a Polish accent, and
2) A German in his default mode (aka expecting people to talk german)
... then "Poland" might sound enough like "Holland", in which case the "aaah Amsterdam" suddenly makes a lot more sense.
Either that, or this was at a festival, in which case beer, in which case all usual logic explanations go out the window.
![Tongue :P](https://www.eevblog.com/forum/Smileys/default/xtongue.gif.pagespeed.ic.J5mTe0A2NA.png)