That cupboard in your house that is filled with complete shit. The place has no organisation. No one can find anything in there. It's a mysterious place to enter.
Hey Jim, can you run and get me a new light bulb form the mystery cupboard!
When your penis becomes erect for no apparent reason.
Guy 1: I just got a mystery boner man!
Guy 2: Cool!
a person who may or may not be "closet gay".
Chris: So did Mac ever come out?
Tommy: No, he's still a mystery fruit.
A menacing legend about a mythical beast. The beast liked music and danced to the rhytms but the songs were later found out to his random beeping and booping combined with sounds like "oouh" or "aaau" and many others. He also liked playing a game which controlled what seemed to be a lego man in modern days context. He likes to destroy everything he sees and would not hesitate to slapp with his big fat ass hand. If something was living, friendly or not the beast does big slapp on it. That's all researchers have found on this topic. Not known much about it, they decided to call this the mysterious legend. This legend, one of the most mysterious ones out there remains unsolved.
It can be used randomly to confuse people.
Person 1 "hi how's it going billy"
Person 2 "have you heard about the mysterious legend?"
Person 1 "what is the mysterious legend"
Person 2" the mysterious legend? You don't know? Search it in the urban dictionary"
some kind of food you just can't tell what kind of meat is in it if any at all. prison food
shit we're having mystery meat for dinner tonight
Any short period of time forgotten during a long day of drinking.
John said he partied all day at the tailgate and that he had a little mystery time before dinner..
Mysterious brown: something brown on your skin or clothing that could be chocolate from a previously eaten snack or it could be dirt, or it could be shit. You can't be sure that it is chocolate or you could lick it off, so you have to clean it.
Oh no, I just ate a kit kat bar and then pet the dog and now I found something brown on my arm. That is some mysterious brown. I'd better wash it off with soap and water.