The act of masturbating with your pants on.
I was in the back of the bus when I decided to Pantsturbate.
by CakeBadger November 21, 2014
After not having sex for an extremely long time, just the sight of a naked woman in front of you makes you cum your pants.
Just getting home from a year overseas, he took a girl home from the bar, but was only able to pantsturbate in front of her.
by john juan 80 September 09, 2009