A large group of people that seem to get in the way no matter what angle you attempt to take to get through it. Tends to block main entrances or lobby areas in any type of building.
Todd: Hey man! You were late for our Dad's Make A Difference class at the CC!

Gary: I know dude, there was a giant clustrafuck right outside the main entrance. I was about ready to plow over everyone.
by Mrpissedoffatpeople February 7, 2012
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A word coach Sullivan uses a lot which means an absolute mess and no one understands what they are doing . Mostly used at basketball practice but can be used in games or other sports. Only about 13 people can relate to this but others will begin to realize what this word is about
What the hell are you guys doing this is an absolute clustrafuck
by #coach sully clustrafuck January 16, 2019
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