1 definition by Isauce

when someone goes into a dark room or area with intentions to have sex with someone (or otherwise cannot see their intended partner), then, after the sexual encounter, finds out they had sex with someone else without knowing it.
Melanie went into the room and thought she had sex with Chris. However, she really had sex with Lambert. Wow, Lambert did the ninja-ghost-sex move on her.
by Isauce August 20, 2006
Get the mug
Get a the ninja-ghost-sex move mug for your barber Bob.