An ATAR (Australian Tertiary Admissions Rank) below 30.00, where the exact number is not recorded in order to spare students great shame and humiliation. Your only options after this point are TAFE and hospo.
Jonno: Did you hear Steph got a mystery mark?
Tommo: Fuark, her rents are gonna be pissed.
by pinto boy 96 November 18, 2018
Get the mystery mark mug.
A greasy stain that usually appears on one of your shirts after being washed without pre-treating it. Source of the stain is unknown, but the culprit is most likely from the greasy chicken you had last night or from the Vaseline or lotion you used to, well, you know, and you didnt wash your hands well enough. Of course, you're gonna blame the chicken. In either case, if the spot doesn't come out, you throw the shirt away.
Mom: "Son, what's that stain on your shirt?"

Me: *blush* "Oh! I was wearing this the other night at supper when we had fried chicken and I guess I wiped my hand on my shirt. It's a mystery stain, mom."
by MS Libertarian January 25, 2014
Get the Mystery stain mug.
A drinking binge with several friends noramlly lasting for several hours
"Hawke poured whiskey into two more mugs. Jack Prouduced a fifth of Vodka. Murphy had a half pint of scotch and several small cans of sardines packed in olive oil, as well as a box of crackers. An hour later they were giggling and the mystery tour was well on its way."
by dadgad8 December 2, 2011
Get the Mystery Tour mug.
The small pieces of indeterminate origin that have found their way into chip shop curry sauce. They may look horrible but are damn tasty.
Customer: What are these floating bits in my curry sauce?
Chippy owner: What...those? Why young sir...those are mystery lumps!
by Milky655 April 21, 2010
Get the Mystery Lumps mug.
meat that is not readily identifiable, especially as served
in a student dining hall, fraternity house, etc
I am not going to eat that mystery meat unless someone can tell me what it is.
by Light Joker September 3, 2005
Get the mystery meat mug.
Someone that refuses to shower after sport or wears, underwear or shorts preventing teammates from seeing the dick.
See Tom after the game? He was a real mystery dick.
by Aussie big boy October 17, 2020
Get the Mystery dick mug.
A female who is mysterious. She is a mystery girl who lives in a mystery world and mystery boys will be her toys. She is rather snazzy basically.
Mystery girl enjoys a nice cup of tea and a sit down.
by m_g October 14, 2005
Get the mystery girl mug.