sexninja 

To be totally awesome and sweet

Girl 1: OMG i just had the best sex0r ever
Girl 2: Really? how many times did you cum?
Girl 1: About 56 times in 1 hour, it was SO sexninja
Girl 2: OMG FAP

sexninja by The Romero January 25, 2003

sexninja 

a incredibly homosexual person who loves ghey mens

Guy1: Man that guy is such a wolfanoz
Guy2: no, he's more of a sexninja

sexninja by =D January 25, 2003

Surprise Sex Ninja 

A hero for the new world, he brings about peace through the ancient art of Surprise Sex. His true identity remains a secret.

Oh My God, that guy was just attacked by the Surprise Sex Ninja.

Surprise Sex Ninja by Innocent Bystander September 11, 2004

Sex Ninja 

A person who can engage in sexual intercourse or masturbation so stealthily that the people in the adjoining room do not suspect a thing.

Dave: Dude, did your parents cath you and whats-her'face screwing last night?

Ed: No way, man. I'm a sex ninja.

Sex Ninja by Wesker June 11, 2006

Surprise Sex Ninja 

Some fool with a t-shirt on his head, runs around and violates people (usually men).

Random Person 1: Cool look, a Ninja costume.
Random Person 2: That's the Surprise Sex Ninja.
Random Person 1: Why is he dry humping that guy's ass?

Surprise Sex Ninja by Lacrox September 18, 2004

sex ninja 

Someone who acts conservative but is secretly really kinky and good in bed.

"I thought John was a super awkward nerdy guy who never gets girls, turns out he's a complete sex ninja!"

sex ninja by THE sex ninja January 5, 2013

Sex Ninja 

Someone who is super sneaky in bed and doesn't get caught or noticed (Unless they want to be).

"I am a super sneaky Sex Ninja. I will sneak into your house, Into your room, Take what I want from you, Leave and you will never know I was there."

Sex Ninja by C00kie Crumbs December 6, 2006