another synonym for a person's brain
use your thinking cap first, before doing something retargerous
by sexydimma May 04, 2015
Time to put on my thinking cap.
by RichardInTheBox January 15, 2012
When your dumb ass is so dumb that you need to wear a helmet when doing normal activities such as riding the short bus or sleeping. Also, randomly dropping face first out of nowhere may be a side effect.
Dave's dumb ass fell straight out of his chair the other night and ate carpet, luckily he was wearing his thinking-cap.
by Sloth Fucker October 07, 2013