Military origin, but in general usage.
A total and complete failure due to someone's idiocy.
Also known as "Charlie Foxtrot".
Don't let Jon touch that computer, he's a walking Charlie Foxtrot.
1) An term to describe the use of a large number of people to accomplish a task. The outcome can be negatively affected when too many personnel are applied.
2) A military or online-gaming term for a military screw-up. Usually due to incompetent commanders... often results in friendly fire. Possibly an indication that two many soldiers were needlessly deployed in a small area.
programmer #1: there's like 20 people working on that bug.
programmer #2: uh, I think it'll be a total clusterfuck
soldier #1: awe fuck, I just shot Bobby
soldier #2: we're shooting at our own guys, this is a total clusterfuck!
Marine slang -- A clusterfuck was any group of Marines big enough to draw enemy fire, or several Marines close enough together to be wounded by the same incoming round. More generically, a clusterfuck was something that was all screwed up. Whenever three or more CAP Marines gathered in the open, talking or working on something, somebody was sure to call out "clusterfuck!" and one or more guys would walk away.
4 Marines were killed in a giant clusterfuck.
When events spiral out of control; when two or more events occur at the same time.
My car was totaled, my husband was arrested, and I can't bail him out. Man, what a clusterfuck!
A derogatory term used to describe a system or operation that has been totally hosed up by a group of managers who couldn't leave well enough alone.
Better back up that estimate, there's a cluster fuck where the Planning Department used to be.
Chaos. Anything that is occuring in a haphazardly. The situation is not even thinking about dreaming about having a sense of order. A clustering of items (usually people) in a fucked up way.
When people are trying to get off an airplane and retrieve their baggage from the overhead bins... that is a cluster fuck.
To have everything wrong happen at the exact same time.
Dammit, I got clusterfucked today.