Crasterbation is when you masturbate too much and then you have to decide about coming later as you've been spanking the monkey too frequently.
I was crasterbating this morning and had no problem getting a woody but since I crasterbate everyday of the year I understand why I wasn't able to cum. To crasterbation is to pull the pud.
by Professor PMS December 26, 2014
Look at that guy in the computer lab wacking it to gay porn! He has definitely mastered the art of Crasterbation...
by Crassmaster9000 September 16, 2014