The feeling you get when you are having a lively discussion or listening to an engaging lecture and everything makes sense and it gives you a bunch of new ideas about the topic at hand. The intellectual equivalent of an erection.
DeSean: oh man, that lecture given by Dr. Kobilka about G protein-coupled receptor dynamics gave me a massive brain boner.
Derrick: uhh...right, yeah, totally dude. *pssst* Jimmy, I think we need to re-evaluate our friendship with DeSean...
Jimmy: agreed.
Derrick: uhh...right, yeah, totally dude. *pssst* Jimmy, I think we need to re-evaluate our friendship with DeSean...
Jimmy: agreed.
by Longrod Von Hugedong April 28, 2016
Something that strikes a chord in someone's thinking, creating a spur of "enlightenment" and stimulation in knowledge, especially in subjects like philosophy & logic.
John: Hey, have you seen that recent philosophical discussion between XXX and YYY on YouTube?
Peter: Yeah, it was so good it gave me a brain boner.
Peter: Yeah, it was so good it gave me a brain boner.
by nullswitch February 20, 2011
You: Did you guys check out my new 3D TV?
Me: Yeah, major brain boner.
Used when describing something that intellectually "turned" you on.
Me: Yeah, major brain boner.
Used when describing something that intellectually "turned" you on.
by The Comet March 10, 2011
by Expression of happiness July 22, 2014
by TauntaunandJ January 19, 2018
Guy1: Have you seen that girl? She is incredibly intelligent.
Guy2: Yeah, I would go over an horde of blood thirsty aliens to have her. I have an incredible Brain Boner.
Girl1: I can' t belive the way he explained Heisenber uncertainty principle.
Girl2: Yeah, he gave me a Brain Boner since the start of the class.
Guy2: Yeah, I would go over an horde of blood thirsty aliens to have her. I have an incredible Brain Boner.
Girl1: I can' t belive the way he explained Heisenber uncertainty principle.
Girl2: Yeah, he gave me a Brain Boner since the start of the class.
by Dolapevich January 17, 2014
A strong liking towards a member of the same gender, in a non-sexual manner. A closely bonded friendship. Similar to a "bromance."
Ted: "Hey where has Phil been lately? Ah, probably shackin' up with some lass."
Josh: "I really don't know and it's kinda bumming me out. We used to do everything together. It's kinda like Cheech without Chong."
Ted: "Heh sounds like you've got a total brain boner for him!"
Josh: "I really don't know and it's kinda bumming me out. We used to do everything together. It's kinda like Cheech without Chong."
Ted: "Heh sounds like you've got a total brain boner for him!"
by chungamunga April 18, 2009