Like an afterthought, this is when you tweet more than once in a 10 minute period following your previous tweet and related to your previous tweet, but not a specific add-on to the previous tweet.
(5 minutes after tweeting about the long line...) As an aftertweet, the guy in line in front of me smells like an old lunch box at the beginning of the year when it's been shut all Summer.
by Kaelem January 25, 2011
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the second thoughts that you just had after you a) ran out of characters or b) hit the enter button on Twitter.
I tweeted him and told him he was being stupid, but as an 'aftertweet', I explained that I was feeling cranky that day.

I added the address of the party as an 'aftertweet'.
by jane the impaler April 1, 2011
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