A brain that belongs to a tard. A tard brain rarely functions and on the occasion that it does function, it's gonna make a blunder. All members of tard fam have this type of brain and the tard brain was most likely first discovered in their family too. Norman "Nick" is the oldest one out of the bunch so you can bet that he was the first one with it but then it spread to York and Mike Carlson among others. For some unknown reason, it seems like York got the runt of the litter here because his brain is wayyy worse than the other two.