McSplooshpoo

A McDonald's dump in the toilet so powerful that it makes a sploosh sound and sends water flying back up.

My ass was soaked after my last McSplooshpoo...

by instasiv/McSplooshpoo July 16, 2019

McSex

When you're hungry and horny so you have sex while eating in the McDonald's bathroom

I feel horny and hungry so we had a McSex.

by Jace Campbell August 27, 2020

MCSO

The best roblox sheriffs department!!! Former home of captain daddy poo60329 aka pooman

guy1 : did u hear abt poo's mcso term??
guy2: ya it was extremely biased cuz, justice for poo!

by officialpooman June 23, 2021

mcsluglahogublagonernoolybonkaloongalinglslilaboobsalingdickaloos

boobs

god she has some huge mcsluglahogublagonernoolybonkaloongalinglslilaboobsalingdickaloos

by hahapoor September 4, 2021

McShave Diet

A quick way to drop 5 pounds by shitting out 2 quarts of cum after a busy evening at the bathhouse.

He's definitely going to be on a McShave diet after taking on the varsity football team last night behind the gym.

by Joeamato69 December 7, 2021

MCSM

The abbreviated form of the Telltale/Mojang collab game "Minecraft Story Mode" it's a good game really, except for that one bitch Issumer.

Person 1: "Bro I got so much nostalgia playing MCSM again.

by EnbyIreland April 14, 2022

McSexual

The sexual attraction to famous fast-food sex icon Ronald McDonald, often inspired by his McDouble cheeked up disposition and sizable McSausage. His special move, the "Griddy" (named after the McGriddle) is said to seduce anyone into McSexuality and makes you instantly gain 20 pounds. It is the "M" in LGBTQM

"I'm not fat. This is a lifestyle and its called being McSexual. Are you McPhobic??

by The Originull September 26, 2022