brainspark 

When one person says a word and at the exact same time another person says the same word you would say brainspark. If you both say brainspark at the same time too then you say brainspark 3 times.

If one person says apple and another says apple at the same time you would say brainspark

brainspark by Awesome girl911 January 16, 2017

brainspike 

Verb: the act of watching a particular series (usually but not always anime) of episodes or movies in a row.
(especially the ENTIRE series at once)
Noun: the series to be watched.

Originated from Eau Claire, Wisconsin. It was created as a more polite/useable form of mindfuck (which means the same thing) by the local university's anime organization. Apparently watching many hours of anime episodes straight does something to you in the head.

Verb: Remember when we brainspiked Eva last month?

Noun: The brainspike starts at 6 and ends four days later.

brainspike by Vela May 9, 2004

Brainshart 

Similar to the brainfart, it is the inability to even remember the slightest bit of what you were talking about to the point where someone wonders if you *actually* shit your pants while thinking.

When describing his dog, Rufus had a brainshart and immediately went into a 20 year coma.

Brainshart by Taterbutthole December 27, 2009

Brainshank 

Brainshank:
Verb
A form of psychological abuse:
1) an attempt to destroy another's perception of reality or drive insane by manipulating small elements of their environment, and subsequently insisting that they are mistaken or misremembering when they point out these changes.

2) the intent of making a victim doubt his or her own memory, perception, and sanity. Instances may range simply from the denial by an abuser that previous abusive incidents ever occurred, up to the staging of bizarre events by the abuser with the intention of disorienting the victim.

A practical joke, prank

Manipulate, deceive, control

Shane brainshanked me into thinking I’m crazy.
Emily brainshanked Rayetta with a fake snake

Brainshank by Cosmiccowgirl617 November 12, 2018

brainparked 

An extended period of time when the mind feels blank. No thoughts are going through the mind, but the mind doesn't feel empty either. The term is typically used in past-tense, as an individual can only retrospectively realize that they were brainparked. If an individual realizes that they are in "brainparking" mode, then at that moment they have already left the state of being brainparked.

Sorry, I didn't hear you. I was brainparked for a while.

brainparked by onekant October 30, 2011

brainsmarts 

the smartness of the brain expressed in one cheerful and hip word.
can also be used in states of sarcasm.

-I failed my science test

- good job brainsmarts

brainsmarts by brainsmartzchild May 18, 2010

Brainsack 

Male testicles

All he ever does is think with his brainsack

Brainsack by DanyaelDemonic June 7, 2011