Janky

Janky: used to describe something that is of poor quality, unreliable, or not well-made.

Example 1:
In a video game, a player may describe a glitchy and poorly designed level as janky, meaning that it doesn’t work properly and is frustrating to play.

Example 2:
If someone buys a cheap knockoff product online and it breaks after a few days, they may call it janky to express disappointment at its low quality and lack of durability.