An insult that is not, of course, implying that the person on the receiving end of said insult has a brain that is held together by paste. It is just another way of calling somebody 'stupid'.
Carl: Well, how was I supposed to know that the coffee was scalding hot?
Pete: You made the coffee, paste-for-brains.
Pete: You made the coffee, paste-for-brains.
by Diggity Monkeez January 26, 2005
by Sinnia April 25, 2021
by 5pudy November 28, 2017
by kris745f March 01, 2016
i just brain poop
by laughmaker5000 September 29, 2019
The result occuring a day or so after smoking spice (such as K2) in which you experience slight memory loss and feel rather stupid for the whole day. Experts believe this is just a mental paranoia experience that can lead you to think you have something wrong with your brain.
Johnny- Fuck, I forgot about that homework, dude!
Tom- Probably cause of that K2 you smoked the other day.
Johnny- I think my brain is messed up dude!
Tom- You have massive Mush-Brain!
Johnny- Fuck Mush-Brain.
Tom- Probably cause of that K2 you smoked the other day.
Johnny- I think my brain is messed up dude!
Tom- You have massive Mush-Brain!
Johnny- Fuck Mush-Brain.
by UndercoverStoner February 02, 2011
"We were going to deploy to Production at 4 o'clock, but the developers had a massive Brain Shart and the clean up is going to take hours."
by Rainbow Mamba July 12, 2017