here's a slightly more tangible example from the field of anthropology: Johanson discovers "Lucy" and debunks the Leakey's view of the evolutionary tree; subsequently the Leakeys debunk Johanson's methods -- wherein lies the bunk?

creationists and evolutionists are constantly striving to debunk each other's claims; the fact of the matter is that there is not enough evidence one way or the other to unbunk the dialectic.

http://home.mn.rr.com/wwftd/