This is the 15823rd most frequent Polish word.
słupski
Relating to the town or region of Słupsk in Poland.
Here, 'słupski' is an adjective derived from the name of the town Słupsk, describing someone or something originating from or associated with that town.
Wczoraj spotkałem słupskiego artystę na wystawie.
Yesterday, I met a Słupsk-based artist at the exhibition.
In this usage, 'słupski' modifies 'stadion,' referring to the stadium belonging to or located in the town of Słupsk.
Słupski stadion jest jednym z największych w regionie.
The Słupsk stadium is one of the largest in the region.
Here, 'słupski' describes the bread as being characteristic of or produced in Słupsk.