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1.
A number of closely interrelated disasters that are connected to one another through their collective gravity.

The expression is the combination of the astronomical term globular cluster for group of stars and a clusterfuck.
The oil spill in the Gulf of Mexico will ruin corporate reputations, damage the fishing industry, kill countless fish and birds, pollute beaches and coastal wetlands. In short it is a globular clusterfuck that will take years to recover from.

World War I, the Spanish Flu, the Great Depression and World War 2 are viewed by many historians as a globular clusterfuck that spanned over three decades.
by AYYFRON June 01, 2010