Similar to a Peeping Tom, a Shutter Sheldon is a creep who takes/obtains inappropriate photos of someone who is not aware of it. This can be done by incognito photography or by going through a person's personal photos and sending said photos to themselves for later viewing/use.
Also applicable as a verb.
Noun
Jonathan took pictures of a girl while she was changing, this makes him a Shutter Sheldon.
Verb
"Friends don't shutter sheldon their friends. That makes you an asshole."
When you're lured into someone's house under false presences, only for your host to 'let the shutters down'. Usually under the guise of a sporting event
I’ll put the shutters down on Saturday if we go back to mine to watch the rest of the games
Uncommon slang for moving someone to another location or position.
Person 1: "Who let that bimbo into our office?"
Person 2: "He was shuttered in by security."
A situation where someone runs out of toilet paper and is forced to use their hand to wipe after pooping (usually in a public restroom).
"Ginger was down to just the tube. She had to paint the shutters."