To completely space out and lose yourself mentally in a fictional scenario, plot or thought. The source of the thoughts can either be internal or external, such as a movie plot or just a conversation about a certain topic.
Multiple people people can be affected by arc brain together if they mindlessly continue rabbling, spouting coherent nonsense but yet still understanding one another, somehow sticking to the original topic.
An example of this phenomena could be when you watch a film with a friend and you notice that one of you have been staring into the void, sitting completely still and silent. Then suddenly that person presents a sub plot about something unimportant or an extremely detailed analysis of something completely irrelevant to the film.
Arc brain commonly happens while under the influence of marijuana.
Multiple people people can be affected by arc brain together if they mindlessly continue rabbling, spouting coherent nonsense but yet still understanding one another, somehow sticking to the original topic.
An example of this phenomena could be when you watch a film with a friend and you notice that one of you have been staring into the void, sitting completely still and silent. Then suddenly that person presents a sub plot about something unimportant or an extremely detailed analysis of something completely irrelevant to the film.
Arc brain commonly happens while under the influence of marijuana.
While watching Encanto, "How do you think the villages local economy is affected by the loss of the madrigal family's magical power?"
"Sheesh man I don't know. Solid arc brain though."
"Sheesh man I don't know. Solid arc brain though."
by Trumor and Mentis January 29, 2022
Get the Arc Brainmug. The tendency for a normally smart and well-adjusted black American to suddenly and inexplicably become hostile or incapable of rational thought. Often happens during puberty or during their late teens/early 20's. Once afflicted, the symptoms tend to be irreversible. Symptoms include becoming hyper religious, falling for black nationalist rhetoric, becoming physically violent, throwing away close friendships with anyone who isn't dumb and ignorant, and generally giving black Americans as a whole a bad name.
Bill: Yo, you hear what happened to Karmelo?
Kai: I haven't heard from him in years. Dude was always pretty chill and fun to hang out with. What happened?
Bill: He got a bad case of nigger brain. Stabbed a kid at a track meet out of nowhere for no reason.
Kai: You serious? Bro, what is up with all these cases of nigger brain? Is it an actual disease or something?
Bill: Must be. We all know he's not the only young black person to flip their lid and go crazy over nothing out of nowhere.
Kai: I haven't heard from him in years. Dude was always pretty chill and fun to hang out with. What happened?
Bill: He got a bad case of nigger brain. Stabbed a kid at a track meet out of nowhere for no reason.
Kai: You serious? Bro, what is up with all these cases of nigger brain? Is it an actual disease or something?
Bill: Must be. We all know he's not the only young black person to flip their lid and go crazy over nothing out of nowhere.
by YouKnowItsReal May 29, 2025
Get the Nigger Brainmug. A necessary component of one's body that allows the user to form logical thoughts and perform actions. Recent studies report that people's sisters are the only known organisms that can live without a brain. Instead, inside their heads are pieces of big chungus's belly fat, which creates the power of stupidity which feeds their damned souls.
Doctor: What are your hobbies?
Stupid sister: NyAAaaAAaAA
Brother: What's wrong with her, Doc?
Doctor: I'm afraid she has no brain at all. I'm sorry. There's nothing we can do.
Brother: What's that like?
Docter: It's like she has autism and down syndrome and times that by 1000.
Stupid sister: NyAAaaAAaAA
Brother: What's wrong with her, Doc?
Doctor: I'm afraid she has no brain at all. I'm sorry. There's nothing we can do.
Brother: What's that like?
Docter: It's like she has autism and down syndrome and times that by 1000.
by xXNeedForWeedXx July 29, 2019
Get the brainmug. A term coined by the shared phenomenon that people who work in tech desire to quit their jobs and go live in the woods or return to nature. The idea that what tech work involves is so physically opposed to what we do as humans, that it compels us to change our lives dramatically and go live in the woods.
by Rosemoth March 14, 2021
Get the Drifter’s Brainmug. Definition:
Used to describe someone who is not only physically late but also mentally slow to catch up or understand what’s going on. They miss the moment and the point.
Used to describe someone who is not only physically late but also mentally slow to catch up or understand what’s going on. They miss the moment and the point.
Friend 1: “Did you see Josh just asked what the assignment is? We turned it in yesterday.”
Friend 2: “Yeah, man’s five minutes and five brains late.”
Friend 2: “Yeah, man’s five minutes and five brains late.”
by MJ cool June 9, 2025
Get the Five minutes and five brains latemug. 
by Jmuss729472 November 7, 2017
Get the mortar brainmug.