Eleventyone is the word used by
Hobbits in JRR Tolkein's books for another Hobbits age when he/she becomes 111 years old.
This word was picked up by games and
internet forum goers who try to act cooler than other gamers and internet forum goers, though usually they aren't. Eleventyone seems to have spawned other uses for the "
Eleventy" prefix.
Bilbo Baggins played a trick on the guests at his birthday when he was
eleventyone by
putting on his magic ring and vanishing.