The excrement made physical contact with a hydro-electric powered oscillating air current distribution device 

The origin of "The shit hit the fan".

Man, when the excrement makes physical contact with a hydro-electric powered oscillating air current distribution device, I'm hittin' the road.

The excrement made physical contact with a hydro-electric powered oscillating air current distribution device by Mouse October 1, 2004

hydroelectric dam 

A very lengthy way of saying damn

Also a thing that turns a wheel with water to make electricity or some shit like that.

Chad: Hydroelectric dam, that guy got roasted!
Fred: Shut the fuck up
(Throws Chad into real dam)

hydroelectric dam by Pastaisillegalnow May 23, 2017