A metaphorical concept, shadowlight is a shadow produced by projection of light rather than an absence of it. Unlike a typical shadow which is frequently associated with a person bringing their personal darkness into a positive environment, shadowlight is associated with a person bringing their light, their positivity, into a dower environment.
The room was thick with gloom, but when Jenna marched in through the heavy oak doors, her shadowlight cast across the musky walls, burning away the dark atmosphere.
The act of covering the the entire toilet seat with your ass when you take a dump, in order to minimise the spread of stink from your shit.
Lean back on the seat to plug up as much of the hole until you flush.
Note - May require a fat ass.
Guy wanting to take a shit: What are you doing in the bathroom?
Shitter: I'm giving birth to king kong's finger.
Guy wanting to take a shit: No way, I can't smell anything, you must be masturbating.
Shitter: Nah, I'm just shading the poo.