Back-line Ninja

A Mcdonald's employee who lies about having a black belt or any martial arts training other than playing Mortal Combat or watching Bruce Lee films.
Crazy Dave is a Back-line Ninja.
by Big ole Bastard July 05, 2009
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ninja lining

When you manage to do a line of cocaine without anyone seeing you.

🙅🏻👃🏻 is the emoji used for ninja lining so no one knows what you're talking about (stealth just like a ninja)
Seal wanna go ninja lining tonight?

Or

Seal wanna 🙅🏻👃🏻 tonight?
by squidding March 16, 2016
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