Darkiplier 

The vengeful version of Markiplier.

Kevin:So,Karen,did you have a fun time with Darkiplier after disliking Markiplier's video?
Karen,in the hospital:Fuck you Kevin.

Darkiplier by hopeismoe October 21, 2019

Darkiplier 

Darkiplier, known to be Markiplier's evil alter ego. Darkiplier is a cruel evil person when he needs to and he doesn't care for anyone else but himself. There can be times where Dark feels guilty of his actions, but he never shows it. He thinks he can outsmart Mark with his evil ways, but just never seems to succeed.

Darkiplier is Markiplier's rather to be evil alter ego.
Random anxious person: "Is Dark rather to be nearby..?"
Mark: "Not for another 10 minutes or so... he'll soon come and take over again, but not to worry."
Random anxious person: "Lord, please keep me safe, for I may never see light again."

Darkiplier by Kaammo May 29, 2018

Darkiplier 

A character made by Mark Fischbach (also known as Markiplier), an entity made out of the fusion of Celine (The Seer), Damien (The Mayor), the Manor Entity, and the body of Y/N (The District Attorney).
Watch "Who Killed Markiplier?" series for full details.

Officially introduced on "A Date with Markiplier" sketch made to celebrate Valentine's Day on 2017, while previously has appeared on June 19th, 2012 for short, creepypasta-horror style videos.

His motive is for avenging everything he had lost thanks to Mark (Who Killed Markiplier, DAMIEN) and quite possibly either taking control of the channel (Markiplier TV), or just watching what Mark is currently up to while looking stunning in his white suit (A Heist with Markiplier).
Also, probably arguing with Anti (Darkiplier vs. Antisepticeye) over who's world are theirs.

Vienna: I miss...
Rogue: Darkiplier. Not surprising 😒
Vienna: I know, just like you missed him ALL THE TIME ✋🙄

Darkiplier by Darkiplier Admirer July 25, 2021

Darkiplier 

Markipliers evil side a demon look alike of markiplier that is in love with him and that is an a Elmo vampire that makes mark think of evil things and makes him act different and that makes u shiver when u see him in your dreams

darkiplier

Darkiplier by Markiplierfangirl October 7, 2015

Markiplier 

The hot Korean gamer Jesus.

Oh my Glob! Markiplier!

Markiplier by zimmygirl777 March 19, 2023

Markiplier syndrome 

When you laugh or cry at any thing

Markiplier syndrome - markiplier is a giggly b*tch

Markiplier syndrome by Carex.care12 November 22, 2016

Markiplier syndrome 

Markiplier syndrome is when you yell at almost anything. Normally followed by swearing, ranting, raging, and rambling.

I think I have Markiplier syndrome. At lunch, I screamed the word " penis" so loud, people from the other end of the cafeteria heard me.

Markiplier syndrome by I_eat_a_sandwitch January 29, 2017