(I found this really interesting entry while browsing through wikipedia.)
“All your base are belong to us” (often shortened to “All Your Base”, AYBABTU or simply AYB) is an incorrect English phrase that sparked an Internet phenomenon in 2001 and 2002, with the spread of flash animation that ubiquitously depicted the slogan. The text is taken from the opening cut scene of the English version of the 1989 Japanese video game Zero Wing by Toaplan. Its brief but intense popularity derived in part from its poor translation into English and partly from its near-accidental adoption by a group of Internet humorists. “All Your Base” is still a well-known reference among gamers, and has been used as a cheat-phrase in the popular Blizzard game Warcraft. It is possibly the most well-known example of Engrish.
Read more here: http://en.wikipedia.org/wiki/All_your_base_are_belong_to_us
Not much of a gamer here, so this is news to me.