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Brain Sister

A "Brain Sister" is a girl who wears glasses and finished high school. However, there is some debate as to whether or not a "Brain Sister" actually wears glasses.
"She was only twentyseventeen, she was a lonely beauty queen, she was a brain sister, Texas Instruments all day..."

Quoted from the Limozeen song "Brain Sister"
by Garboth March 19, 2008
mugGet the Brain Sistermug.

cat brains

when a male crams his balls through the fly of his pants and unsupectedly shows a female or male for that matter.
Yo that girl sucked the knowledge out of my cat brains.
by ms.kittey June 17, 2006
mugGet the cat brainsmug.

Banana brains

Banana brain, crazy, brain mush, brain fog
That is so banana brains. I have banana brains.
by Blacktears80 June 7, 2019
mugGet the Banana brainsmug.

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
mugGet the brain ghostmug.

Brain-is-on-fire

1. When a person"s worldly problems involving time or money, not to be confused with emotional/spiritual issues, reach a point where the brain can no longer function without intense consternation and worry.
1. "I am not making enough money, and I am going to run out soon, my brain-is-on-fire."

2. "Ernest can't be reached right now, he is having business troubles, his brain-is-on-fire."

3. "We need to have this finished by week's end, however, it will take much longer, our brains-are-on-fire."
by View Man March 8, 2012
mugGet the Brain-is-on-firemug.

Brain Porn

Brain Porn is any piece of information that makes you interested, curious, and ultimately smile.

It sometimes sparks a feeling of wonder when thinking about what you will be able to do with it.

Brain Porn is often found in software, TV shows, movies, articles, videos, research papers and so on.
An article about how they made the Mars Rover landing is Brain Porn!

Generative AI and the ability to create images from text is Brain Porn!

Learning a new programming language is Brain Porn!

Reading a classical music score is Brain Porn!

"How It's Made" Discovery TV show - Brain Porn!
by tool3 October 3, 2022
mugGet the Brain Pornmug.

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
mugGet the boy brainmug.

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