McSteamer 

The act of shitting on a thin, used McDonald's napkin that is lying on the other persons face.

When Kristina saw the crinkled up napkin hanging out of the trash can, it reminded her of the hot McSteamer Thomas gave her last weekend.

McSteamer by DirtySanchez123456 November 22, 2013

McSteamer 

Hot pooh that was generated by a large McDonald's feast.

I have to take a major McSteamer after downing the Value Meal. Love them McRibs!

McSteamer by P. Quimby's old fat brother January 23, 2009

McSteamy 

Nickname for Grey's Anatomy character Mark Sloan. Dr. Sloan is played by none other than Eric Dane.

*SPOILER ALERT*
His character first broke up a marriage between Derek and Addison with a one-night-stand with Addison, which turned out to actually be a month long affair. He still has a thing for Addison, and Derek barely speaks to him. Oh yeah, and he hooked up with Callie!
-----
And yet...a well-deserved nickname, did anybody else see that shower scene, the infamous towel?!

"McSexy," "nooo," "McYummy," "noope," definatley "McSteamy!"

McSteamy by THEurbanchicka November 4, 2006

McSteamy 

A guy who, although you know would be terrible in a relationship, you would love to have hot, steamy sex with.

I - "Hey I don't need dating advice from someone who cheated on McDreamy with McSteamy"
A - "But it's o.k. That I cheated on Mcdreamy with McSteamy because I'm working my way up the McEamy ladder"

McSteamy by J'Aime April 30, 2007

Christy McSweatervest

A euphemism for Rick Santorum referencing his religious rhetoric and sweatervest.

Christy McSweatervest said President Obama is a snob for wanting kids to go to college

Christy McSweatervest by Ooblagof June 15, 2012

Creamy McCreamerson 

A Creamy McCreamerson is someone who you know very well and is usually a good friend, typically someone who you look at and think “That person is creamy.”

Ethan- “Hey Aaron, thanks for doing the GTA 5 setups for the heist. You’re a Creamy McCreamerson.”

Aaron- “No problem man, you’re quite creamy too!”

Creamy McCreamerson by GTA5GOD May 8, 2023

McSteamy 

a smelly, nasty, hellacious fart usually brought upon after the consumption of McDonald's food

After finishing his Big-Mac meal, Tyrone cut such a nasty McSteamy, all his homies nearly suffocated in his Escalade.

McSteamy by La Petomaine August 15, 2008