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
by Lumpy T October 23, 2017
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
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