Origin: fuck is replaced by badger on some messageboards. Users of such boards have assimilated the use of badger into their everyday speech giving rise to some amusing sentence constructions.
I have no idea. It's a right old clusterbadger.
During Michaelmas Term in Oxford or Cambridge, there are many rowing boats on the river occupied by people who are new to the sport - novices. These people are usually quite bad at rowing and can be quite upsetting for other river users. Sometimes, their sheer idiocy can lead to pile-ups in the river, or a clusterbadger. Indeed, from above, it will actually look as messy as a group of badgers attempting a clusterfuck.
Stroke: Badgering novices.