"The Polish plumber and the Polish builder are stereotypes of cheap labour coming from Central and Eastern Europe to work in Western Europe. They are both a symbol of the fear that cheap Eastern European labour is threatening the jobs of Western Europeans and a symbol of foreign labour being more affordable and reliable."
https://en.wikipedia.org/wiki/Polish_plumber
![](https://upload.wikimedia.org/wikipedia/en/c/cc/Polish_Plumber.jpg)