"While Brody was sleeping I was asked by a friend to ninjaculate on his face, covering his whole mouth in my judo sperm.
by ninjaculator October 27, 2009
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?
by -MV- November 23, 2010
I earned my black belt in ninjaculation last night when I popped one all over Cindy's face while she slept.
by pseudomine September 07, 2011
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.
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.
by Zublminal April 05, 2015