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brain ghost

A figment of one's imagination which occurs as a result of one's brain filling in gaps in information unnecessarily.

They can be sights, sounds, tactile sensations, or even an uncomfortable feeling a presence. They are distinguished from ordinary hallucinations by the fact that all people are prone to these phenomena, and the person need not believe the brain ghost to represent reality, although some do.
A person's blind spots are an example of a brain ghost.

"I was alone in my house when I felt the presence of a ghost."
"Ghosts don't exist; it must have been a brain ghost."

"I thought I heard a baby crying, but upon realizing that I was alone, I realized it was a brain ghost."
by Maninorange January 1, 2012
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Mother Brain

1. Enemy of Samus Aran in the Metroid games "Metroid" and "Super Metroid," Mother Brain is the presumed leader of the Space Pirates and, together with her winged colleague, Ridley, poses a great threat to the Galactic Federation. Armed with her vast intelligence, she seeks to manipulate the power of the Metroids to her advantage.

Typically depicted as resting immobile in an armored case, Mother Brain has also developed other means of defending herself. In "Super Metroid" she demonstrated her combat ability through an enormous bio-mechanical bipedal body- the use of which granted her the mobility she needed to bring her energy beams and bombs to bear against Samus.

Mother Brain was responsible for the slaughter of the "daughter Metroid" of Samus Aran at that same confrontation, adding to the acridness in the feud between the two.

2. an intelligent, reclusive person who remains somewhat guarded and isolated; tends to shy away from those less intelligent than them
1. The Mother Brain killed my babyyy!!!

2.

-Where is Margie?

-She's at the library again. In the basement.

-She's such a Mother Brain!
by Mama Brain's boy May 30, 2011
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brain brothers

1. Two people who think alike
2. Conjoined twins connected at the skull
1. "Wow, I was thinking of pepperoni too! I guess that makes us brain brothers!"
2. "Being connected at the skull really sucks. I wish we weren't brain brothers."
by Steven Stamper, Billy Bozell December 31, 2008
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boy brain

not thinking beyond your dick or your stomach about the impact of your actions on other people
my boyfriend doesn't realize it's our anniversary today. he is suffering from boy brain.
by truthbombdropper March 18, 2014
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brain licking

by Keisha Valous December 7, 2015
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Team brains

when a skanky girl gives you and all your friends head
" dude that team brains last night was dope"
by baby truck June 30, 2008
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Brain Soap

Soap used for cleansing the brain of a disturbing image or words that just wont leave.

Can also be spelled without a space, as Brainsoap
"I think i need some serious brain soap after seeing that"

p1-"That image is now forever burned into my retinas... "
p2-"Not with brain soap!" *hands brain soap*
p1-"ahh brain soap"
p2-"so what was that image?"
p1-"what image??"
by Yaku Leslie-Draco Drespeire March 10, 2010
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