Sometimes we can write or post things that we come to regret at a later point in time, once all the implications of having shared such material become more clear.
A traditional retraction is a public statement by the author or source of an earlier statement, that withdraws, or cancels the previous statement.
A reEtraction is a retraction of something specifically posted or shared on the internet and accessed mainly by eletronic devices.
Usually done by deleting or removing all traces of the offensive text / material and just hoping that no one noticed and recorded it while it was out there.
Rick : " You posted some blasphemous shit man. A lot of people are pissed..."
John : " It seems as though a serious reEtraction is in order..."
Ex 2 :
John : " Pardon me, I have to make a bee-line for home to reEtract some incrimidating pictures that I should not have posted yesterday..."