Google Seppuku is a game and internet meme that first made its appearance on Ghastly's Ghastly Comic. The game consists of going onto the Google search engine, and using a special language tool to type random Japanese characters into the image search box, and searching. The number of points you get is dependent on how many different images you view before you see an image so disturbing, you wish you never played the game. The name of the game comes from the Japanese word seppuku describing the act of disemboweling oneself as part of ritual suicide.
The game itself was formally played by various internet addicts seeking a thrill, ultimately with a person having actually committed suicide after having invented the game with the "best of five" rules and seeing an image so horrific that it permanently scarred them mentally.