Ninja Mask 

To don a woman's panties over your face, so as to look like a ninja. Typically after she has worn them.

While I was fucking Laurie, I grabbed her panties and wore them like a ninja mask, gave it to her from behind, like a ninja!

Ninja Mask by Wolf Whitman November 23, 2014

Ninja Mask 

After someone drops a stank bomb, the other person covers there face with there shirt leaving only the eyes exposed. If stank is strong enough They will quickly exit like a ninja.

Man Look at Dave go, Kevin must had dropped a stank bomb, Its like he dissapered in a puff of dodo gas.

Was he even wearing a ninja mask?

Ninja Mask by mutant ninja turtle September 19, 2010

ninja gas mask

when someone puts there shirt over there face making them look like a ninja after someone farts in a closed off area like a car or elevator

Guy 1: *farts*
Guy 2: *puts shirt over nose*
Guy 3: oh god that stinks
Guy 2: hm good thing im using my ninja gas mask

ninja gas mask by imnotpedobearbtwwantsomecandy July 27, 2010

NinjaMaster29 

"What's a joe shoe?"

A NinjaMaster29 is someone who slightly knows the anime JoJo's Bizarre Adventure,

and they know JoJo through memes.

It is someone who only knows part 3 and the latest animated part of JoJo,
and their favorite fight is probably Jotaro vs Dio from Stardust Crusaders.

Guys, we found a NinjaMaster29 in this discord server.

NinjaMaster29 by iAmTheBigGamer March 17, 2020

NinjaMasterBeta 

NinjaMasterBeta is a cool guy.

Wow NinjaMasterBeta, you are cool!

NinjaMasterBeta by John Kimble April 8, 2004

Ninjamas 

The replacement holiday for Christmas built on the belief that Santa is actually a Ninja due to his ability to get in and out of houses undetected. This holiday is typically followed 7 days later by New Chuck's Eve.

Merry Ninjamas

Ninjamas by EvilSpyBoy May 9, 2010