brain afk

When a person is not paying attention, distracted, daydreaming or considered mentally unattendant, they are usually discribed as "brain afk".
afk is an abreviation for "away from keyboard", usually used by the gaming community to indicate when a person has left their computer (e.g. to get a drink, go to the toilet etc.) and therefore unable to act in-game.
"brain afk" is meant to describe a persons mentality to (metaphorically) have left their brains temporarily, being the reason for the person to not pay attention or realize what is happening in their surroundings.

Teacher: Can someone please give me the answer to the question?

Student: What was the question? I was brain afk when the question was asked...

by theLucaboy January 21, 2017

Crane Brain

When you get a blowjob from a chick that looks like a giraffe.

Mark: Dude… I heard you went home with that tall broad last night…

Steve: Yeah it was dope… she gave me Crane Brain!

by Quadarius Junior March 1, 2023

google-brained

A person who doesn't try to remember anything that they can look up on Google.

1st guy: Man, we watched a great show last night about a town that is trying to survive after a nuclear attack.
2nd guy: What's the show called?
1st guy: I'm google-brained man. I'll have to look it up.

by GritCityGuy March 10, 2008

blue brain

When one expects to have his or her mind blown, but does not (derived from the popular "blue balls").

I expected that movie's ending to blow my mind, but it didn't; now I have a terrible case of blue brain.

by 2848208164 October 17, 2013

brain boner

just like real ones, they can be given or received.

Tauni gave me a huge brain boner this afternoon.

by TauntaunandJ January 19, 2018

dunder brain

A better, more correct version of 'dunda head.' Dunder brain can be used as a friendly insult, but do not try actually paying somebody out with this word, because you will seem like a complete moron, and a 'dunder brain' yourself.

Can refer to someone who is muddled in the brain, or a generally silly person.

Kayla: "You're a dunda head"
Me: "No, Kayla, it's dunder brain"
Kayla: "You're a retard"

by bucranogus September 16, 2010

brained out

Doing a lot of things that require your brain.

Tomorrow has to be all business. 10am office hours for chemistry, then study 3 chapters of psychology. I’m going to be so brained out.

by dramastace May 21, 2016