when you accidentally hit send before completing writing your email. usually in the middle of a word or thought so that the recipient has no idea what the heck you are talking about.
When replying to the email thread Tim accidentally hit reply after he had typed "I just l", when what he really meant to say was "I just left". Thanks to his premature reply-ulation Kristen had no clue what his email really meant.
by krismac September 24, 2010