profuse, intermittent absentmindedness occurring during and around the 9 months of pregnancy that would lead one to assume brain injury if said person were not pregnant.
husband: "My wife told the same story 3 times. Then she spent a while looking for her phone whilst talking on it. Must be preggo brain."
by EddieMame July 06, 2013
my brain is the equivalent of a sperm whale and a cockroaches offspring being baked in a pizza oven in a dark alley way in Detroit
by grape bleach March 14, 2021
A non skilled Rainbow Six Siege player who shoots his or her own teammate. Usually referring to the intelligence level of a pig.
by Jack Salty March 20, 2017
by Gwilz November 06, 2018
by Lumpy T October 23, 2017
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?
John: "Kill him, he is one shot."
Bob: *Misses every shot*
John: Do you have sonic brain?
by Pogopawee March 19, 2021
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.
by dramastace May 03, 2016