A status post on facebook that asks you to copy and re-post as your status. Similar to chain email and letters.
Example: It is "I love my daughter" week. If you have a daughter that you love more than you can describe then re-post this as your status.
I refuse to post a chain status.
When one person changes their status, and then other people either make the exact same status, or change their status because of it.
Bob: Dude, I changed my status to "with my girl", and Ryan totally status chained me
Joe: Oh don't I know it. Pretty soon my whole facebook news feed was full of people apparently "with their girls"