a. one who has appeared randomly from any direction which has, in turn, caused disturbance to a group of people, friends or a single person.

b. random person in any given form who has appeared causing any form of disturbance wearing black.

c. random black person coming out of nowhere, clearly having no origin on the current scene
a.) I was calmly walking the school yard (or college campus) when I saw a shadow from the corner of my eye, I go to look and see nothing. Moments later a familiar face appears in front of me and I jump! As they laugh, I'm thinking, "...pure Paranormal Blacktivity."

b.) "Dude! What the heck! You just Paranormal Blacktivitied me (us, them, etc.)!"

c.)

"Oh ginger snaps, did you see that?!" person a.
"Naw what was it?" person b.
"Not WHAT but WHO! Paranormal Blacktivity." person c.
by SSAshril20 January 22, 2012
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to be beautiful beyond what can be imagined. that is beyond natural.
That woman is so paranormally beautiful.
by Deep blue 2012 September 2, 2009
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The movement made by standing still and then shifting your weight back and forth ever-so-slightly. This 'dance' is in relation to the film Paranormal Activity in which the time lapse shot of the main female character standing over her partners bed appears to make her 'dance'.

This movement can also be used to freak out your friends in the middle of the night.
Adam: Yeah! Kevin was so drunk last night all he could do was break out into the Paranormal Activity Dance.
by skater13am November 21, 2009
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the act of something being so creepy it should have been in the paranormal activity movie, or it reminded on of a certain part of that movie
Dude did you see Sam standing over her boyfriends body last night?
Yeah homie that was straight paranormal activity worthy
by terrifying abscinity May 9, 2010
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A slow-paced yawner of a "scary" movie that will leave you wanting to watch literally anything else. People have said, "The last 15 minutes will scar you for life."

But all I saw was over an hour of build-up for a disappointing ending. Not scary at all.

Many people believe that anyone who doesn't find it scary are just unimaginative morons who believe only gore is scary. When in reality the morons who find the film scary are the kind of people who honestly believe that the "found footage" horror films are real. The kind of people who wrote angry letters about "The Blair Witch Project" because they thought it was in poor taste that a studio would profit off of the death of 3 innocent teenagers. Without doing their research and finding out that it was 3 actors pretending to be scared and lost in the woods while being chased by a monster.
Idiot: Dude, Paranormal Activity 2 scared me so bad that I stay up at night with the lights on at night and then sleep during the day.

Friend of Idiot: You were scared by that boring ass movie?

Idiot: Dude, how could you not be scared? It's a true story. That was actual footage from the security cameras that the family had in their house. They really died and the baby was really kidnapped. Didn't you see the thing at the beginning where the studio thanked the local police department for giving them the footage?

Friend of Idiot: Your stupidity makes my brain hurt.
by HotRodFan899 May 28, 2012
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