nonejaculatory 

An activity that does not end with ejaculation

"we hooked-up, but is was nonejaculatory"

nonejaculatory by Peepe` April 21, 2010

ninjaculate 

the act of ejaculating on someone without the person knowing.

"While Brody was sleeping I was asked by a friend to ninjaculate on his face, covering his whole mouth in my judo sperm.

ninjaculate by ninjaculator October 26, 2009

Ninjaculated 

Ejaculating secretly in a public place with no one noticing

dude, my friend just totally told me that he Ninjaculated in his classroom. What do you think the teacher's gonna think when she finds out?

Ninjaculated by -MV- November 25, 2010

Ninjaculation 

The act of ejaculating on another person without them being aware of said act.

I earned my black belt in ninjaculation last night when I popped one all over Cindy's face while she slept.

Ninjaculation by pseudomine September 8, 2011

Ninjaculate 

To ejaculate in such a quiet or subtle way that your partner either barely noticed or did not notice at all.

girl: why did you stop?
guy: rolls off
girl: WTF. Did you cum?
guy: yeah
girl: I couldn't tell. That was quiet.
guy: Like a ninja. I guess i ninjaculated.

Ninjaculate by Zublminal April 4, 2015