A length of time that changes randomly like the time remaining counter on a computer running windows when you are downloading a file or migrating data. Referring to the tendency of that counter to read something like "time remaining: 27 minutes" then "time remaining: 29 minutes" then "time remaining: 28 minutes" then "time remaining: 15 minutes" then "time remaining: 31 minutes."
by KimJSCP March 17, 2010