The story
Compound of dog + water. According to Know Your Meme, the video game sense was popularized by Fortnite streamer Zachology on December 10 2020 as a euphemism for dogshit (“rubbish, bad”).
First known use, by meaning
- from 2020 Extremely bad or unskilled (especially at a video game); trash.
Etymology from Wiktionary, CC BY-SA 4.0.