Ah no confusion meant, all in good fun. It was a joke.
Shitter=Is a nickname that means basically bad at the game.
I.E- "Did you see Joey miss that sniper shot today on Call of Duty?" "Yeah, he's a real shitter."
In your gif, we're quite literally shitters.
At this point i'm just trying to say the word as many times as I can, and hopefully get away with it.