Marco's Virginity 

Does not exist. Marco lost it under a table inside a middle school where no one has found it. People say if you go under the exact table and yell pussy then his virginity will appear right in front of your eyes.

Marco's Virginity is a legend.

Marco's Virginity by Spicy_Ness January 23, 2017

Marco's Pizza 

the fucking worst fucking pizza place dont fucking work here

man, marco's pizza is the fucking worst place to work

Marco's Pizza by Aaaaaaagdhfjnfndj June 30, 2022

Marco's Axiom 

Marco’s Axiom demonstrated the economic deduction that as more money is devoted to acquiring the Bitcoin, the higher the price goes as what is available at any one time is always only a small portion of the entire supply. This relationship is both infinite and axiomatic, thus even if the buyer had infinite money, it would only necessitate that the price of Bitcoin in that money is also infinite.”

It would be impossible to buy all Bitcoin even with infinite amount of money, it's Marco's Axiom.

Marco's Axiom by Skubany December 17, 2022

Mario's Tunnel Of Doom 

A very unusual cave created by a mysterious floating head, no records have been written about this cave nor has anyone escaped it for those who have entered it. However, some believe that the cave was emerged in March 8, 1991. Its location is unknown but some say that the only way to find the cave is by entering the Bermuda triangle. No one really knows what is in the cave or where it really came from...

I wouldn't go in Mario's Tunnel Of Doom if I were you...

Mario's Tunnel Of Doom by Luigis January 4, 2017

MARIO'S TUNNEL OF A DOOM 

The place you go to when you piss off Mario's floating head.

OOOH, MARIO'S TUNNEL OF A DOOM! VERY SCARY!

MARIO'S TUNNEL OF A DOOM by Someone of non-imporance August 31, 2013

Mario's floating head 

Exactly what it implies: the floating head of mario from the asstastic educational game, Mario Teaches Typing 2. Says many incredible, awesome things as "Imma bet you can't do this! WEEEEEEEE!" "Oh,nice computer you got here! Can I have it" and "Oh boy! Finally imma get to move onthe ground"
Inventor of the epic "Mariocise"

Mario's floating head is awesome. Apparently he wants somethingto drinkie!

Mario's floating head by Justin Thorson February 27, 2009

Marco-Sexual 

Being a technically homosexual male, sexually attracted only to anime males, or "2-D boys", just like our friend Marco.

You: Wait, isn't John gay? Why wouldn't he want to go on a date with me?
Me: Don't take it personally, he's Marco-sexual. He only likes them 2-D boys.

Marco-Sexual by TallBooty February 7, 2017