death cloud 

Air pollution in major cities that prevent people from seeing the stars at night and sometimes from seeing the sun during the day.

I couldn't see the lunar eclipse last night because I live under the death cloud in L.A.

death cloud by Red D April 15, 2008

death cloud 

When you take a shit and then shower, the shit smell forms a cloud of death with the rising steam.

Damn son, I could hardly walk in the bathroom with all of those death clouds you made in there!

death cloud by b3nnyboy November 27, 2007

Blue Cloud of Death 

Refers to the potential failure of a cloud computing network.

Google experienced a massive blue cloud of death yesterday that shutdown 10 million subscribers of their G-storage service.

Blue Cloud of Death by sweets1970 April 5, 2009