Window Ninja 

When you're messed up on an illeagle substance, more than likely an "upper", and you keep looking out the window out of paranoia.

"Dude, quit playing window ninja over there. Why can't you just get high with us and be chill?"

Window Ninja by phatkhiken February 23, 2008

window ninja 

peeping tom, someone who looks into windows for nude women.

tom goes up to a womans window pulls a window ninja.

window ninja by Charles Denton January 14, 2008