To infer that someone's cognitive function is on the lower end of the spectrum by alluding to "Sped". Sonic is widely regarded as a very speedy character and sonic is an attempt to play on the word sped. Attaching Sonic to the brain means sped brain for lack of a better phrase.
*Plays game*
John: "Kill him, he is one shot."
Bob: *Misses every shot*
John: Do you have sonic brain?
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.
A non skilled Rainbow Six Siege player who shoots his or her own teammate. Usually referring to the intelligence level of a pig.
God damn salty_jak has pork brains and just shot me!
when you do something incredibly dum
ooogabooga brain:yo I just went ooogabooga brain
When you sleep on a slope usually while camping and all the blood rushes to your head.
We all got bad headaches from bonner brain, due to sleeping upside down on a hill.
Description of actions taken by those who have played Genshin Impact on their phones for hours at a time.
1. Being quick to judge or dismissive of something based on its surface-level qualities, even being willing to denounce it based on those surface-level qualities.
2. Claiming generally facetious actions that take a long period of time over several days are all similar in experience.
"I don't wanna be Genshin brained about this new season--I'll watch the first three episodes before giving up on it."
"Did you just claim that watching Attack On Titan Season 1 in 3 days and watching all of Ouran High School in 5 days are different? That's a pretty Genshin brained thing to do."
The inferior brain of a person that has never had to learn any complicated grammar.
"I speak english when traveling because my anglophone brain can't handle another language"