This is the 11196th most frequent Polish word.
greenie
The Polish word "greenie" does not exist; it may be an English slang term referring to an inexperienced person or environmental enthusiast.
Here, 'zieloną' is used figuratively to describe a new, unused item, implying freshness or inexperience.
Mam nowiutką książkę kucharską, jeszcze zieloną, bo nigdy jej nie używałem.
I have a brand-new cookbook, still green because I've never used it.
In this sentence, 'zielony' is used metaphorically to express someone's lack of experience in a particular skill.
Mój brat jest jeszcze zielony w grze na gitarze.
My brother is still green at playing the guitar.
The word 'zielony' in this sentence is used as an adjective to describe the color green, referring to its association with nature and hope.