A derogatory prepatory statement in a sentence used when telling someone something they should already know, but, in fact the author knows they do not.
As you know, gang leadership is run from the Prison Infrastructure.
ayon kay Marc Habel ika-16 ng Setyembre, 2008
A preparatory statement used in a sentence to avoid giving offense. It assures the listener that he or she already knows the fact about to be mentioned and that the speaker is mentioning it merely to acknowledge its truth or to help make a point.
As you know, Warden, the gang's leadership is within the prison.
ayon kay LexLuthericographer ika-29 ng Mayo, 2010