The devious but non-harmful tricks played on other
internet users or MMO players. Usually preformed by griefers or trolls, but
sometimes by just people in good taste. More complex ones may be done by
script kiddies.
(In a game of tf2)
Player 1: Why does our entire team consist of sandvich heavies?
Player 2: :3
Player 1: Enough of this catfacery.
(In
Chatroulette)
*You see stranger's feed as a copy of yourself*
Stranger: :3
You: -_- *nexted*