kox/koks

‘Great, excellent’. This term refers to objects, phenomena, or people. It is often used to express admiration or positive emotions. It is frequently intensified with prefixes like “giga-” or “mega”usually written separately, e.g., giga koks, mega kox. The popularity of “kox” may stem from Minecraft, where one of the rarest and most valuable items, the Enchanted Golden Apple, is nicknamed “kox.” This nickname may also reference the old variety of apples, Cox’s Orange Pippin, known for its slightly orange flavor and often called “Cox.”

Kox/ koks is a synonym of the word ‘kot’[Eng. ‘cat’] with a similar meaning, e.g. Giga kot in repairing.

Examples of use:

[own translation]

1. It went great because the math teacher is a real koks.
2. He was some kind of kox sniper! /https://www.gampre.pl/ogloszenia/counter-strike-global-offensive/ogloszenie-52812/

See more: Bartek Chaciński, Słowo na niedzielę: kox, https://polifonia.blog.polityka.pl/2021/04/18/slowo-na-niedziele-kox/.