This is the 6459th most frequent Polish word.
chojnic
The word "chojnic" does not exist in Polish. It might be a misspelling or confusion with “Chojnice,” which is a town in Poland.
Chojnicie here is a colloquial expression suggesting excelling or performing very well in an activity.
Chojnicie się doskonale, organizując takie wydarzenie.
You excel at organizing such an event.
In this sentence, Chojnica serves as a proper noun, denoting the name of a geographic location.
Czy wiesz, że Chojnica to nazwa rzeki w Polsce?
Do you know that Chojnica is the name of a river in Poland?
Chojnicka in this context is an adjective describing something intricate or elaborate, derived colloquially.