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6.
When a secret is let out with potentially devastating consequences. If some faeces were to come into contact with a fan it would splatter them everywhere, devastating.
"I told this guy at my school how his girlfriend was a good lay, then the shit hit the fan."
by Soiled Undergarment August 18, 2003
 
1.
Expression - A derivative of the original: "The excrement made physical contact with a hydro-electric powered oscillating air current distribution device". Used primarily to describe a set of circumstances where events became inflamed to a point that control was lost.
Her insults rolled of me like water but the shit hit the fan after she claimed to possess information leading to proof that my Mother wore Army boots.
by regedt32 April 06, 2004
 
2.
An idiomatic expression used to convey that something disastrous has occured.
The moment I saw the second plane hit the World Trade Center, I knew that shit had hit the fan.
by Brian T November 25, 2003
 
3.
A term used when a situation goes from bad to worse. (When there is shit that stinks...thas bad. When shit hits a running fan, flings it all over the place, and spreads the wafting stank...thas WORSE!).
We were fuckin last night, right? An I yell out, 'KIM!!!' Her name was Krysta...and after that, THE SHIT HIT THE FAN.
by Joshiro007 February 12, 2003
 
4.
The toilet in the 1970's space station "Skylab" had a suction fan and a safety belt to strap yourself down with in zero gravity.

Zero gravity would cause the faeces to float all over the place disasterously so there was airflow to suck the faeces into a bag, a bit like a vacuum cleaner does. Now, if the bag broke somehow, then the "Shit hit the fan!!".
Awww no! the shit hit the fan!!!.
by Marcus Rosenblat January 06, 2007
 
5.
The situation where a recent catastrophe is further complicated by some application of Murphy's Law or further revelations. Taken from the mental image of the "fragrant and pictorial" mess that excrement would make if it came into contact with the blades of a fan...
It was bad enough when they caught him rolling in the hay with a girl, but the shit really hit the fan when it was reported that she was underage.
by The Eternal Grunt January 30, 2004
 
7.
When something bad is found out and the consequences start to happen.
"I didn't think she'd find out, until Bob told her about it, then the shit hit the fan".
by yomamas_bin_slobbin April 11, 2009