over-ejaculation 

An instance in which you haven't jacked-off in a very long time, thus resulting in the shooting of a very large and creamy load, usually on the face or chest. Over-ejaculation does not not exceed 11 fluid ounces. For a larger amount, see uber-ejaculation.

When my mom saw that my wall was covered semen, I explained that it was the result of over-ejaculation, so she gave me a cookie.

over-ejaculation by Gary Coleman IV June 16, 2008

Overjaculation

When you masturbate so much that when you try to do so again, all that comes out is a puff of smoke; a general fatigue of the genitals.

"I had a mean chicken-beating marathon all day yesterday and when I tried to rub one out this morning, I failed miserably; It seems I have, once again, been the victim of overjaculation."

Overjaculation by Rusty "BongPolish" Shackleford May 13, 2010