A person whose thinking is so ignorant that it is worth nothing but the puffs of hot air coming out of his/her mouth; a person who utters an exceptionally misinformed or uninformed opinion.
Denny was always going on about his knowledge of nuclear physics, even though he failed high school Physics. He is such a puff brain!
by Cynical Bob March 30, 2020
Get the puff brainmug. by straightoutofseattle May 2, 2014
Get the kook brainmug. 
The brain chain is a linear sequence of human intelligence levels. At the top of the classic brain chain we have our Einsteins. At the middle there are moderately intelligent people. At the bottom, there are ordinary people. The top of the brain chain consumes the middle, the middle consumes the morons, similar to the process of the food chain.
by dorifuto April 26, 2014
Get the brain chainmug. An entirely new stage of confusion. It's like having a "brain fart" except for a breif moment you can not remember anything. Your brain feels like it has shut down becuase one thing is so difficult to understand. It leaves you in a whole new state of confusion and befuddlement.
by IbagM21 January 3, 2015
Get the Brain Fartedmug. He just did the brain-sane!
by Jackson Sullivan October 11, 2023
Get the Brain-sanemug. To receive head (oral sex) on the campus of Binghamton University, which is coincidentally shaped like a brain.
"So man, did you get some head last night?"
"Nah, we snuck into the lecture hall and she gave me some of that BU Brain."
"Nah, we snuck into the lecture hall and she gave me some of that BU Brain."
by Dixie Kong October 6, 2021
Get the BU Brainmug.