a word created by dane cook. meaning extremely fucked up. similar to FUBAR (Fucked Up Beyond All Reason).
Cindy: man our school's really fucked up. everyone does crack
Takashi: i no. its just one big huge clusterfuck
by paulie bleeker June 10, 2008
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A chocolate candy bar filled with FUCK pellets. (sperm)
I filled your momma with large quantities of clusterfuck.
by Thomas Tank September 9, 2007
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one who needs the solidarity from a centain group - usually the group consists of other clusterfuck types all feeding from one another.
"oh shit! those delta kappa phi guys just overran the bar. what a bunch of clusterfucks"
by erikwh August 18, 2004
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When there is a group of people (a group of friends, usually) and some form of drama causes a member of the group to be alienated. Usually this person doesn't have any other friends to turn to, so now, he's essentially friendless because of drama.

The most common form of clusterfucking occurs when you have a group of friends where two of them are dating, but they break up, causing everyone in the group to hate one of the people who broke up.
Man, I've gotta get new friends so I can prevent myself getting clusterfucked.
by Eat My Teats May 5, 2008
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In beirut, when team members make shots into the same cup in one turn, the opposing team has to drink every cup that is touching that cup in addition to the cup the shots were made in to. In addition to that, the players that just shot get to take another turn.
If the game is a more than two players, the number of shots made into a cup for a clusterfuck must be determined. For instance, if the game is 4 on 4, 3 shots into the same cup may qualify as a clusterfuck.
That beirut game was close until we clusterfucked you, then you were screwed.
by Charles B January 12, 2006
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A statistically significant dense amount of sexual intercourse. signifies a large amount of sex that is engage in repeatedly, and when plotted on a graph stays in a large cluster.
James and Dylan engaged in a clusterfuck
by Mackrel May 15, 2009
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