The act of positioning your hand over your anus and proceeding to fart then applying the cupped hand onto an unsuspecting victims mouth and nose and holding it there steadily for a minimum of 5 seconds.
Mikey held down Teddy while John snuck up and cup and masked him.
When you dip your balls in chocolate and place them over someone's eyes, so that when you move your balls away it looks like they are wearing a bandit mask made of chocolate.
Jim had passed out at the party before the chocolate fountain had run out, so Danny took out his balls and gave Jim a chocolate teabag bandit mask.
more severe than beer goggles. the holder of the welders mask is the person who hooks up with the most unattractive female after consuming mass quantities of alcohol
did you see the girl that jon hooked up with? damn he had the welding mask on last night
Very similar to the Gorilla Mask, the Yeti Mask involves removing aged grey and/or white pubic hairs and applying them firmly on a freshly facialled face so they stick to the face resembling a White Gorilla or Yeti.
Grandpa Joe: I was just having sex with Grandma and I Yeti Masked her.
Jonny: What's a Yeti Mask?
Grandpa Joe: It's when you rip out your old man pubes after giving her a facial and throw it on her face.
Jonny: I want to be Yeti Masked!!!