Weed Ninja 

A pot head, with enough years of experience and ability to camouflage him(her)self as a non-stoner amongst coworkers and/or society.

Dude! Did you know Joe, from work, gets high every night?

No way! I could never see him being a stoner.

Yeah man, he's such a Weed Ninja.

Weed Ninja by Shamanax February 3, 2012

Weed Ninja 

A weed ninja is someone who, when under the unfluence of pot, takes on the persona of a ninja. He thinks himself to be super sneaky but he is not. A weed ninja is known to tell people via text or bb messenger, that he is infact, a weed ninja.

When that guy gets high, he becomes a total weed ninja

Weed Ninja by Weed ninja July 20, 2011

Mystical Ninja Weed 

A hardy new indica/sativa cultivar found primarily in the Greenbrier area of Arkansas. Hardy buds, with saffron-colored threads, are covered in a fine, crystalline powder. Users have reported bizarre philosophical or mystical trains of thought, delusions of grandeur and a strong desire to "hook me up with some of that shit, man."

Man, fuck y'all! Get yo' own weed! You can't have none of this Mystical Ninja Weed.

Mystical Ninja Weed by Seven Thousand Porcupines November 6, 2007