MarcBoi 

In 2025 fuckbois roam the streets named Marc. Notice the C at the end instead of the K. That's your first sign to beware. These guys will do everything and anything to sleep with you but make it not seem like it's about sex. Like the siren songs of old they use their money and resources to lure you in instead of their voice to trick their victims. Once a mating ritual has been completed they then begin to burrow themselves in your anus never leaving you be while simultaneously gaslighting you to make you feel guilty when you don't want to sleep with them again. Similar to parasites, vampires, and leeches they feed off your misfortune instead of blood. Only to reappear once your at your lowest attempting to complete another mating ritual that results in you not recognizing them as the fuckbois they are. If unsuccessful a temper tantrum will ensue as they begin their slow crawl out of you anus in the hopes of finding another victim by acting like their the victim of a bad relationship. They are the older brother of chads and brads, and cousin to kyles. Fathers and mothers tend to be named Kevin and Karen.

I gotta figure out how to get this MarcBoi out of my butt. He's in there deep and it's only getting worse

MarcBoi by PJohns3372 March 31, 2025

marcoing 

Awkwardly trying to squeeze in between people because one does not want to be on the end of something, I.E. a stand in a stadium.

Sorry about marcoing in here guys, I just really didn't want to be on the end of these stands.

marcoing by whale1258 November 20, 2011

Marcoisim 

Any word uttered by Marco that sounds almost correct but the actual word means something completely different and is completely wrong for the sentence. It could also be a blatant mispronounciation or a completely made up word or idea used in a conversation.

"spectacle" a "marcoisim"

"I'm a bit spectacle about switching to another program"

Marcoisim by Sandycock April 11, 2015

carter marcoionni 

this bitch procastinates all the time but is very chill, A carter is a very nice person but can be scary so watch out.

Person 1: "Hey Carter Marcoionni"
Carter: "Grrrr"

carter marcoionni by SweatyGamer2000 May 16, 2021

marcoing 

Marcoing means to be achiveing goals (in video games) yet not be there making them. the short for marcoing is Macr

player: hey, do u train in this stop alot?
marcoer: ... (means nothing)
player: umm, are you there?
marcoer: ...
(*puff* random event comes up)
marcoing-er: ...
player: you should use the event or else
marcoer: ...
(random event goes evil & marcoer doesn't die like its a halgram in rl )

marcoing by Flying_Tomato November 24, 2006

marchoine 

A DUMP IN A TOILET AFTER U TAKE A SQUAT

I JUST MADE A MARCHOINE

marchoine by JACKSQUATCH February 4, 2016

marboi 

A man who cannot grow a beard.

Oh you can't grow a beard ? What a marboi

marboi by Stephhhhh:) January 5, 2021