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!
by Wolf Whitman November 24, 2014
Get the Ninja Mask mug.
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?
by mutant ninja turtle September 18, 2010
Get the Ninja Mask mug.
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
Get the ninja gas mask mug.