Originally a military term describing a disorganized situation with pending dissappointing results, 'ClusterShag' is used when describing such situations when profanity is not tolerated.
Gained popularity on late night television(The Daily Show) when recounting the actions leading up to the 2010 UK elections.
Office Manager: "The computers are down, our receptionist called in sick, the fax machine is on the fritz and the auditors will be here in 20 minutes. We're Screwed!!!"
Employee: " I know. It's a virtual clustershag of endless possibilities"