Insult-O-Matic

1. A person who can't utter a sentence without aiming an insult at someone.

2. A person who can't post on a chatboard without aiming an insult at someone.

3. A person who enjoys belittling others.

Mary says, "Isn't the sky a pretty shade of blue today?"

Insult-O-Matic replies, "You ignorant moron! Anyone with half a brain knows the sky isn't really blue. Why don't you pick up a book once in awhile and learn something?"