Efemr is a Twitter tool that automatically deletes tweets after a predetermined time using hashtags.
With efemr you can now control your reputation better, protect your privacy and sharing humorous fleeting moments with the automatic deletion of public tweets.
Just add a Minute/Hour Hashtag e.g. #5m for 5mn, or #1h for 1 hour, etc… depending on how long you want your tweet to stay visible to the public.
I do not necessarily agree that it helps protect your reputation or privacy since any tweet could have been archived, taken a screenshot of or anything else. But having a time sensitive one for lets say a promotion would be cool.
Efemr uses oAuth to verify tour Twitter account and once in, you simply use the hashtag with the time on tweets you want removed. The server scans the connected accounts and using your authorization you provided removes them.
Keep in mind there is timezones and their userload to consider so it may not happen exactly at the minute you wish.
So check out Efemr if you want to have tweets magically disappear.