thinkulator 

The part of one's brain that actually does the thinking-as opposed to the areas that deal with sex ("Me want FUCK!"), food ("Me want peanut butter cups."), relationships ("Me want FUCK!"), seeking shelter/safety (frequently negotiated via demand for/willingness to provide sex and peanut butter cups), fashion sense ("You're going to wear THAT?").

Taking the college entrance exam really strained my "thinkulator"-I can tell because I notice a "fizzing" sensation in my head, then my eyes and ears start crossing and uncrossing.

thinkulator by Mary Nightshade January 17, 2010

Thinkatory 

A person who thinks too much about stupid and arbitrary things, like grudges or past memories

He is such a thinkatory person because he can not stop thinking about that one time he tripped on the playground in 3rd grade.

Thinkatory by Kickitupanacho77 June 19, 2019

Thinkubator

The room in which colleagues go to engage in critical thinking. See thinkubation.

Sally, Jessie, and Rafael spent most of the morning in the thinkubator at the home offices of Disney. Several ideas were proposed as the day grew longer and longer.

Thinkubator by backotruck February 24, 2013

Thinkulate 

To conduct a thought based calculation regarding one's life and or future actions.

"Jeffrey thinkulated that he would be unable to sleep for another 4 hours."

Thinkulate by Thinkulator November 28, 2012