Taking a spooky dookie is when one enters a bathroom or restroom with the lights off. You can have no sources of light (ie: Phones, tablets, candles, ect) everything must be pitch black. Then you must procede to take a shit as you normally would, wipe, wash your hands(optional but suggested) and leave. All with the lights off.
A Spooky Dookie, is when you take a shit typically in a public place during the Halloween season, and instead of real corn in the feces, you put candy corn in its place, making your crap, a Spooky Dookie
Dude, last night on Halloween i thought i bit into a candy corn snickers, but when i took a bite, IT WAS A SPOOKY DOOKIE