A player who's extremely bad at a game and/or lacking the skill set to make his team succeed. Seen in competitive games such as CS:GO, League of Legends, Rainbow Six: Siege, Overwatch etc.

Commonly used in 4chan's /v/ and /vg/ boards.
I solo queued csgo yesterday but we lost because of a dumb shitter on our team who went 0-0-12.
by Anonymous May 31, 2019
A person who is always bad at something or messes up to much.
" why is nate such a shitter he cant do anything right"
by Ezected December 18, 2015
P1: Where's Danny?
P2: Fucking uh, he's on the shitter.
by G$ July 10, 2002
(a) the arsehole
(b) the shithouse
He went to the shitter to drop his load

He got fucked up his shitter
by Edna Sweetlove November 5, 2006
a tortuous event or experience.
getting my balls caught in the door of my mitsubishi galant was a real shitter.
by jiggyklondike March 2, 2010
the alternate and more accurate name for twitter, especially when used by someone known for talking crap
guess who's on shitter! man, that kevin trudeau sheets like it's nobody's business!
by geek.neo July 26, 2010