1 the act of unorganization of some sort
2 (clusterfuck)an unorganized group of people or things
1 they are just clusterfucking around up there.

2 its just a big clusterfuck on my desk
by the clusterfuck king June 12, 2004
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An orgy, sex en masse
It was a room full of people fucking, one giant clusterfuck
by Anonymous December 21, 2002
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hanging out with friends, huddling in close proximity
we all started clusterfucking to keep warm
by Daria December 17, 2002
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