Derived from the Greek word κακό meaning a miserable thing invented by evil geniuses to torment unsuspecting souls. It is a test given to college students studying physics. For most, it has been known to be as bad as the Greek makes it out to be. However, the definition also means something that will be annihilated, aced, and have a curve set by those called "Keith."
by ThePoet23 March 6, 2017
Get the Thermodynamics Testmug. The toilet roll test is at first a test of girth on an erect penis. If it's loose you'd best hope it comes out the other end to compensate
Blythe; So are you going to take him home from the bar? Gayle; Yes during the toilet roll test his erection bust open the toilet roll
by Gaybo_Spots November 20, 2023
Get the Toilet Roll Testmug. 
When a girl is trying to determine what she can get away with in front of her boyfriend by gradually increasing her sexual nature with another guy in front of him.
Dave didn't think much about his girlfriend's playful banter with the waiter, but when she started to make out with him, he knew he knew she was cuck testing him.
by Orangexylem11 April 14, 2023
Get the Cuck Testingmug. 
by Big Scoop July 29, 2016
Get the Piss Testmug.