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5.
A situation that is totally fucked up, especially as a result of managerial incompetence.

Originally of military origin; a double play on the word "cluster," both evoking multiple fuckups, as used in the term "cluster bomb," and evoking the oak leaf or star "cluster" insignia of the REMF who did the fucking.
Military: "Fuck, I heard Wilkins bought it last night going into that 'headquarters building.' The fucker was shit empty except for the IED that blew him to hell. Took two other guys' legs off and shit. Whose goddamed idea was that whole clusterfuck, anyway?"

Civilian: "That Big Dig is a complete clusterfuck from end to end. Over budget, over due, and now under water."

Incorrect, but sounds like fun: "The three of us got together and clusterfucked all night."
by The Fucking Police September 18, 2006
 
22.
1. When a large group of people are standing around, with no idea of what they're doing, that always seem to get in your way.

2. When it sems like every driver on the road or in the same parking lot as you has completely lost their minds & are totally stupid.

3. Total & complete chaos.
"What is this guy doing?!? Did he really just stop in the middle of the road to take a PHONE CALL!!!!"
"What a cluster-fuck."

"Of course this whole family of people would stop right in the middle of the sidewalk for no apparent reason, so that the only way i can get by is to walk in front of traffic!!!"
by koi_fish23 May 05, 2010
 
23.
a huuuuuuuuuuuuge mess of a situation
your such a cluster-fuck! (say full of rage)
by Da Monkey 716 August 19, 2009
 
24.
a shitstorm of bad stuff happening all at once.
Adriana: Wow I'm getting sued, got into a car accident, got verbally abused from one of my best friends over a dumb rumor, jury duty, my TA lost all of my essays, and school started...

Jamal: What. A. Clusterfuck.
by Johnsmith1010101 March 28, 2011
 
25.
Term that is military in origin, and used to refer to officers in associated positions of power and resulting decisions that resulted in: poor decision making, emotional reactivity, increased number of casualties, and an overall sense of distrust in poorly-qualified leadership.

Currently used in popular culture to describe any situation in which: extrememly poor decisions are made for the purpose of very tired and predictable personal gain, without consideration for how decisons impact others, and an overall sense of intimidation due to lack of competence and personal responsibility by the aggresor.
Rob: "May I have permission to take a piss? Oh, and by the way, everyone is questioning your authority."

Lizzie: "No, you need to hold it for another 43 minutes and I don't care who does what. I've already thrown everyone under the bus, let's sit back and watch it unfold. I created this cluster fuck."
by DoAsISay111 September 14, 2010
 
26.
1) a bad situation that involves many different smaller situations to create one massive insanely intense ordeal.

2)when to many things happen at once, making it extremely hard to comprehend.
1) Holy shit! i can't believe my girlfriend was fucking your boyfriend, and they both got into a car accident, and your brother just got arrested, and Jimmy is trying to commit suicide! This whole day was just one big clusterfuck!

2) Wait...i dont understand this movie, who the hell is that guy and why is he now pointing a gun at that other dude..? And when the fuck did they go to the jungle?
by CzarOfSlang April 21, 2010
 
27.
a extremely confusing situation (from a comparison to a chaotic session of group sex)
Man, I don't think I've ever seen such a cluster fuck in hospital setting in my years of visting mom in the ER after she had a seizure.
by The Return of Light Joker July 08, 2011
 
28.
a general term relating to a large group of men/women failing at a task that one man can do in a short amount of time

A term referring to a large amount of solders in a very small space fighting a equally large amount of solders

Playing a free for all on Nuketown with 18 players
"why are there 30 people trying to change the damn light bulb"

General: "How is the battle going?"
Officer: "80 of our men are cluster fucked in a 4 story building because 100 enemies are on the first floor"

Player 1:Why is there 18 people cluster fucked in Nuketown?
player 2:THERE ARE TOO MANY FUCKING PEOPLE HERE!
by Ivan the CheezBurger eater November 17, 2012