A random thought that comes into your head during masturbation of sexual or of non-sexual nature that totally kills your hard-on or prevents ejaculation.
I was jerking off to internet porn and an image of my mom popped into my head and jerk bombed me.
by Beef Swellington January 27, 2009
That Asian AP student is such a jerkbomb.
by Chefdude548, Cam-Ham, Noah Z. December 09, 2008