heheehe maybe. Actually it's really dull. It just stands for Aussie Chick. It came from a forum I belonged to aaages and aaages ago. There were two people called Sarah on the forum so to save confusion I was known as Aussie Chick (since I was the only Australian on the forum) which eventually got abreviated to AC. I tend to use AC for most of my online stuff these days. *snore*