Deep insights about life in 140 chars or less. Stems from the microblogging service Twitter that allows posts of up to 140 characters. Coined in a tweet on May 7, 2007.
Subjective idealism twitterism: "If a tree falls in the forest and noone is there to Twitter about it, did it really happen at all?"
Sacred Emily's twitterism: "A twitterism is a twitterism is a twitterism"
Descartes' twitterism: "I twitter, therefore I am"
A word specific to the twitter.com universe. Usually formed by adding 'tw' to the beginning of any word. For example, a twitter meme is a tweme, and people on twitter are tweeple.
By gosh if we're not twareful, everything will become a twitterism! You know what I twean?