when your buttfucking ass at videogames

It means the player is calling you trash or bad at the game and it can also be used with the word AIM or many other stuff, this word is mostly used in roblox in a game named YBA Your bizarre adventure

Preseminal fluid (aka., "precum") that comes out of a dog's dick before the actual semen does.
It is very thin (like water) and nearly transparent.

(adjective) really bad; horrible; lacking skills

the hot cum that runs down a sluts leg after getting fucked

Insult used towards someone when you really can't say anything else

"dog water" is basically "trash" in gamers' language.
the word "dog water" can be commonly found in online pvp games such as roblox pvp games or minecraft pvp servers.
most of people get annoyed by this word, better if u dont say it, u can be judged as toxic.