A close reference to "Waterhead" or "Smoothbrain". A "Marble Brain" is typically a just a stupid person with cognitive skills of elementary school kid. Every thought or response is simple & incoherent. Furthermore, it is believed a "Marble Brain" loses a single marble trying to repsond until all their marbles are gone. This is followed by rambling & annoying trailing sentences.
by Greendukey June 18, 2021
Get the Marble Brainmug. Teen brains are the kind of brain that you once had during the onset of puberty until as late as your 20th birthday. This kind of brain makes the newly sexually active teen seek emotionally charged activities, thus increasing risk-taking behavior. Furthermore, MRI devices has also revealed that while the adults were using their prefrontal cortex to understand the expressions, teens were using their amygdala. The amygdala is responsible for inducing emotions and impulses, not logic and rational reasoning. In conclusion, while it is true that the size of our brains doesn’t change much beyond our 6th birthday, its under-the-hood workings are not done developing until the age of 25.
During my teen years, my brain was all about impulse and emotion; I often made decisions based on how I felt instead of thinking them through—classic teen brain behavior!
by Emotional Cruiser October 14, 2025
Get the teen brainmug. by Nat big homo June 2, 2019
Get the Brain Deadmug. A McJuggerNuggets viewer who only watches McJuggerNuggets for mass destruction videos, usually has low-functioning autism.
Guy 1 (Neurotypical): Man I love certain MJN series like My Virtual Escape and Rule 19, it really shows Jesse's expertise in storytelling and acting.
Guy 2 (Psycho Brain): Haha pyscho dad brek stuf *down syndrome noises*
Guy 2 (Psycho Brain): Haha pyscho dad brek stuf *down syndrome noises*
by theenglishlexiconisretarded April 17, 2022
Get the Psycho Brainmug. 
"yo those are some nice shoes!! where'd you buy em"
"Shut up Ughh I hate you Your fake abcd We are living in a material world and i am a material girl Why are you up Shut up Creepy Bo tap tap tap its ok dont panic its ok calm down breathe I miss you I am a material girl I wish i could slap her why am i doing this red orange purple caterpillar get up please shut up i wanna go home is that a rat euphoria why is he looking at me hes kinda cute ooh so is she im not ok i need new clothes why are they looking at me i dont like them shes fake wth i think they think im crazy i wanna cry what if i punched her thats weird no stop dont cry why am i crying my legs are asleep does anybody like me im gay wait we know who is we i like marvel my legs wont wake up whys it called word vomit they are trying to talk to me ignore ignore ignore i cant do this please stop time to go ooh thats my sister why is she following me i really dont like her"
"wtf"
"sorry dude, brain spill"
"Shut up Ughh I hate you Your fake abcd We are living in a material world and i am a material girl Why are you up Shut up Creepy Bo tap tap tap its ok dont panic its ok calm down breathe I miss you I am a material girl I wish i could slap her why am i doing this red orange purple caterpillar get up please shut up i wanna go home is that a rat euphoria why is he looking at me hes kinda cute ooh so is she im not ok i need new clothes why are they looking at me i dont like them shes fake wth i think they think im crazy i wanna cry what if i punched her thats weird no stop dont cry why am i crying my legs are asleep does anybody like me im gay wait we know who is we i like marvel my legs wont wake up whys it called word vomit they are trying to talk to me ignore ignore ignore i cant do this please stop time to go ooh thats my sister why is she following me i really dont like her"
"wtf"
"sorry dude, brain spill"
by yourmomsbdussy October 4, 2022
Get the Brain Spillmug. by MoManTheG August 24, 2017
Get the brain kidsmug.