A senior member of a team who hadn't been involved in the development of a project who then comes in and completely changes the goals or "doesn't like" something the entire team has worked toward and agrres with.
Jill didn't show the brief to her boss, a mystery stakeholder, and now after months of work - he's canceled it because he doesn't like the green color that was used.
by businessSlang September 16, 2012

by reenoreenogago June 16, 2017

That abnormally long and thick rogue hair that appears on your **** (*insert chin, neck, cheek, shoulder, nose, etc) only a day after you checked last. Most commonly complained about by women, and most commonly pointed out by a third party when you are least likely to have tweezers handy. Don't even both trying to pluck them with your fingernails...they're virtually invincible.
Sitting in a cab on the on the way to a formal event, the victim's most critical friend looks over and notices an "eyelash" on said victim's chin. With a delicate brush of her finger, critical friend attempts to dust it away, only to be met with spiny resistance. With a maniacal laugh and inability to hide her pleasure, critical friend declares "OMG, you've got a Mystery Hair!". The victim's face pales as she realizes there are no tweezers in her tiny, formal clutch.
(aside: Victim obsessively touches it throughout the evening, only to wake the next morning with the mystery hair twice as long and a small patch of acne).
(aside: Victim obsessively touches it throughout the evening, only to wake the next morning with the mystery hair twice as long and a small patch of acne).
by overanalyzer November 28, 2012

The act of covering the testicles in Cinnamon and Icing Sugar then proceeding to place the coated testicles in the mouth of an individual.
'Barry Danish Mystery'd me the other night. I fancied pastries but we had none in'
or
'Danish Mystery - If Starbucks did teabagging'
or
'Danish Mystery - If Starbucks did teabagging'
by Sketchy001 November 8, 2015

When a person sharts himself or herself without knowing the shade, volume, or mass of the said poop. The only way to solve the mystery is to de-mask the villain, which by the way is your underwear. Try that on for size, Scooby Doo and friends.
Shaggy: "Zoinks Scoob, Like I just planted a double chocolate fudge surprise in my pants."
Scooby: "Ruhroh Shaggy, guess them Scooby Snacks were expired. Hehehehehehe."
Fred: "Well gang, looks like the Brown Mystery strikes again."
Scooby: "Ruhroh Shaggy, guess them Scooby Snacks were expired. Hehehehehehe."
Fred: "Well gang, looks like the Brown Mystery strikes again."
by superbtoilet February 16, 2014

by Why is this not a word yet? January 11, 2016

by blackhawk357 February 14, 2008
