McSerious 

Being of a very serious nature.

Are you McSerious??????

McSerious by mark1234569802145 April 26, 2006

r u mcserious 

Slang. It’s another way of saying are you serious but only for former or current McDonald’s workers.

Hey we got 10 double cheeseburgers going out! R u mcserious?!

r u mcserious by B-rizzle February 27, 2019

mysterious nigga 

Nigga who wears hood and does voodoo

Mace Windu, mysterious nigga

mysterious nigga by ts98 April 23, 2014

Mysterious Figure 

The biggest dick in all gaming history.

He's an optional boss in kingdom hearts, birth by sleep. He has 2 lightning energy dagger type weapons and he can cast pretty much all the strongest spells such as meteor, megaflare, death, and all of his melee combos bring you to 1hp almost, he also turns invisible at half health and you can no longer see or lock on to him or see where he's coming from, he can make multiple clones of himself that can all do the same attacks and he has an attack that erases all of your special attacks.

Also if you start doing a moderate amount of damage to him he will either put up a temporary shield that makes any damage heal him or he will stop time, reverse it, teleport behind you, begin an attack, and then unfreeze time again.

"Oh hey its Mysterious figure, maybe i should fight hi-"
*1hp*
*dead*
"What just happened?!"

Mysterious Figure by White Key June 30, 2011

Large Mysterious Fish eats a Duck 

A Youtube video that shows a lake with ducks swimming in it, and then suddenly a skeleton jumps up in front of the camera with the same scream as K-fee and scares the viewer.

Me and my friend watched Large Mysterious Fish eats a Duck and now we can't sleep.

Large Mysterious Fish eats a Duck by zoombcake March 27, 2021

Mysterious Lady Parts 

A term coined by Ricky Bobby (Will Ferrell) in Talladega Nights referring to well, no one knows, thats why they're called MYSTERIOUS lady parts.

"Why is Jenn such a bitch today?"
"I think there's something going on with her mysterious lady parts."

Mysterious Lady Parts by TerpForLife January 5, 2009

mysterious 

Is someone that no matter what would you do, you won't be able to understand them, or to get straight answers, he is the guy/girl who is friends with everyone, can talk to whom they want, but still shares no secrets, no pain, nothing with someone else than themselfs... he is the guy that walks with his hands in his pockets, looks arround once a while, doesnt talk much, probably smokes, and have more than one talent, but doesnt use it to draw other's attention..

-Did you read that poem? its dark and cheerful.
-Well you can never know what *Name* thinks about he is Mysterious

mysterious by SilverHeart April 27, 2009