McPoison 

It's generally used to cook McDonalds food (mainly the fries, as they are submerged in it) and is what makes it so delicious. It's OK to eat some every once in awhile but can cause death (usually in the form of a heart attack) if enough is consumed. Eat at your own risk.

Joe: *starts eating McDonalds fries*
Dave: Stop! You're eating the McPoison!
Joe: These are the only fries I've eaten all week!
Dave: Alright then...

McPoison by Johnny Tambourine February 21, 2009

Mcprisonrape 

Not to be confused with MC Prisonrape the rapper, a Mcprisonrape is a Mcgangbang with extra mayo, covered sadistically with ketchup. Usually eaten ravenously in turns by different members of a group, completely satisfying their hunger. Frowned upon by Mcdonalds authority and subject to removal off Mcdonald's premises.

"When I ordered a Mcprisonrape the cashier informed me that it was not on the menu. When I asked for a Mcgangbang I was swiftly removed from the premises".

"When asked what he did over the weekend, Jon replied, 'Me and the boys took the new guy to the ball pit and gave him a Mcprisonrape. I don't think he'll ever forget it'".

"Aww my butt's all red! I think I must have sat in some ketchup from that Mcprisonrape"

"Ya dude, I made that Mcgangbang my bitch. I asked for so much extra mayo it that I couldn't even see the patty. It was a straight up Mcprisonrape."

"Big Mac gave me a Mcprisonrape. The calories made me their bitch."

Mcprisonrape by liquidmagic September 2, 2011

MCPrison's Management 

The definition of bad management where the managers are full of simps, can't take advice, and fulfills every definition of bad management.

Player: Do you think Arkham has bad management?

Another player: Compared to MCPrison's Management, it more than fine.

MCPrison's Management by SuckItCree January 29, 2021

Mcphison

Someone who adapts to conquer everything else around.
Quiet at First but eventually can’t shut up

You could a Mcphison strategy right now

Mcphison by Tornomalero.Ajax November 22, 2021