1. The penis that a woman never intended letting in but realizes after a drunken night that the penis had made it in. As if the member had sneaked in with the stealth of a ninja.
2. An erection that happens at any moment that surprises a women.
2. An erection that happens at any moment that surprises a women.
1.She said there was no way they were ever hooking up. He just called form her bed. He's got ninja penis.
2. They were slow dancing and was poked by his ninja penis.
2. They were slow dancing and was poked by his ninja penis.
by Jon Lincoln April 13, 2011
1. The penis that a woman never intended letting in but realizes after a drunken night that the penis had made it in. As if the member had sneaked in with the stealth of a ninja.
1.She said there was no way they were ever hooking up. He just called form her bed. He's got ninja penis.
by Jon Lincoln April 13, 2011
A penis, made by a ninja it is normally a super long rod that you can hit your mates with. You can also stick it up peoples vagina holes. It's great.. I use them all the time
by Magicarsewhipe April 5, 2009
Penis Ninja is the Ninja of the peen and is sometimes used to insult someone but mostly used as a reference for an awesome event that has happened.
It is also used as a random ninja attack phrase when trying to scare someone or when trying to invoke the spirit of the Penis Ninja"
It is also used as a random ninja attack phrase when trying to scare someone or when trying to invoke the spirit of the Penis Ninja"
"Hey did you hear Justin Bieber's new single"
"Justin Bieber's sucks ninja peen"
"Hey did you take my last Kit-Kat?"
"Yes, why?"
"In the dark of the night I'm going to send the Penis Ninja after you to kick your ass!"
"PENIS NINJA!!!"
"Justin Bieber's sucks ninja peen"
"Hey did you take my last Kit-Kat?"
"Yes, why?"
"In the dark of the night I'm going to send the Penis Ninja after you to kick your ass!"
"PENIS NINJA!!!"
by Serpi March 31, 2010
A person sent in deliberately to have sex with someone's girlfriend with the intention of her significant other catching them in the act so he breaks up with her.
by TK37246 February 12, 2014
An assassin who uses stealth and guile to assassinate a penis, often causing death to the owner of that penis. Scissors, knives, razors, and fire are typical weapons of a penis ninja. An historical example of a penis ninja would be the woman who killed Genghis Khan by slicing off his royal penis. Lorena Bobbitt is a more modern penis ninja of note, although her intended target managed to survive and was reunited with it's body.
by Flavius Schmoesephus December 12, 2016