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

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

injaculate 

When a male reaches orgasm, and the ejaculate is forced to remain 'inside' or redirected into the bladder, either by clenching or physical manipulation through the taint. This can be physically harmful. First wirteen about approx. 7 years ago in the used to be cool till they sold at and went totally gay Vice Magazine.

I thought maybe if I didn't actually cum I could just go over and over again, so I tried that injaculate thing by pushing hard under my balls when I came. No cum, but it felt fucking weird. Like, taking a piss but with nothing coming out; just isn't right.

injaculate by Jack Handyhands October 17, 2008

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

Injaculate 

When you go kaboom! And then you injaculate. You suck all the sexual juices back into your phallic member?

"Did you see Jenny injaculate?"
"Yep, she grabbed a fucking fly when she did it?"

Injaculate by Naes Ttekcup September 25, 2005

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

Nigjaculate 

When two black guys cum on each other at the same time.

Did you hear that those guys nigjaculated?

Nigjaculate by A really cool dude. May 4, 2023