twidundant 

adj. When someone doesn't understand/heed the differences between Twitter & FaceBook choosing to post redundant updates on both.

Josh's updates are totally twidundant so I blocked him on FaceBook.

twidundant by Captain Drag-Ass May 3, 2009

Tridundant 

The act of being so redundant that the redundancy is repeated a second time over.

Having a parking pass with the name of the area on it. Then having to write the name of the location on the pass two more times before issuing it to a guest. So not only did re make the pass clear and redundant you made it "Tridundant".

Tridundant by Everlast17 July 7, 2010