Brain Hack 

To absolutely confuse or surprise someone, deliberately or otherwise, the the point of speechless amazement.
This happens often during such times as: Watching a far more skilled person than yourself perform an act, talking to a greatly profound, or possibly idiotic person, or most often, after a really, really good magic trick.

While watching that David Blaine special on TV, I got brain hacked, like, 20 times. How does he do that!?

Brain Hack by f1g_n3wton September 11, 2009

Brainjacking 

The act of achieving orgasm and/or genital secretion via ones thought process with no physical aide whatsoever.

"I had this raging hard on last night and all I could think about was Tyler Perry dressed up as Madea. Unfortunately I was too drunk to masturbate before I fell asleep. Shortly thereafter I was fairly certain I woke up pissing my pants. Once I came to, thankfully, I had realized I was only brainjacking." - Michael Richards

Albert: (sees Mikey making a face) Is he taking a dump?
Mollie: No, he's thinking real hard! - Look Who's Talking (1989)

Brainjacking by Mr. Douchébag November 27, 2009

brainjack 

To deliberately use someone else's brain to solve a problem or answer a question, rather than your own, even though, with time and effort, you could solve the problem yourself.

I could've worked out the answer to Fermat's Last Theorem, but I brainjacked Brian instead.

Rather than look at the map on the wall to find her way, she brainjacked me.

brainjack by Novosapien October 19, 2009

brainjack 

What Super Mario does in Super Mario Odyssey (as seen as the mario fish in the gif)

Check it here and in the gif

Etymology:
Hitler first mentioned this word which may be what he did to Hinderberg in order to get in control of Germany.

Ed: Wow man, Mario can brainjack stuff in this vid look dude in the gif

Fred: Cool, did you know Hitler also did that?

brainjack by TheTroll73_[Ezman] June 17, 2017

Brainsack 

Male testicles

All he ever does is think with his brainsack

Brainsack by DanyaelDemonic June 7, 2011

braineack

Smarty pants

My little braineack is so smart.

braineack by Curly-Head October 30, 2013

brainjacked 

when you have a repeating song or phrase that has taken control of your brain

i've been brainjacked by soldier boy

brainjacked by nicholas barker March 5, 2008