mcmuffin 

Noun. Generic last name for someone (male or female) who is all fluff and no real substance. Does not live up to expectations or promises. Like a real mickey D's Mcmuffin… looks good, seems good, and maybe even smells good but nothing "good" is there in reality. All fluff and no substance.

Can also be used as an adjective i.e. "mcmuffined"

Yup, Corey Mcmuffin didn't show up again even though he told us all last week he would.

Man that chick is a real mcmuffin, never gets back to me even tough she said she would

mcmuffin by disgruntledfm November 18, 2015

McMuffin 

A word to call a close friend or a loved one.

McMuffin! I'm so happy you're home!

McMuffin by rach9495 June 14, 2010

McMuffin 

A woman with a super-sized muffin top.

Dayum! Check out the McMuffin on dat gurl. She bustin' outta her pants.

McMuffin by Psychopet October 18, 2011

McMuffin 

Noun
A tasty morning snack of vaginal fluids provided by a ladyfriend.

Verb
The act of eating out your ladyfriend before breakfast because you thirst for her nectar.

- A McMuffin is best served hot and ready after an invigorating morning shower.

Shortly after waking up in the morning say
"Baby, I sure could go for a McMuffin. Get your booty in the shower."

McMuffin by terraltheible October 13, 2011

Mcmuffin 

A homosexual male.

"Oh that guys hot" "no babe i heard he's a bit of a mcmuffin" "ah I dont have enough sausage in my mcmuffin for him then, that's a shame".

Mcmuffin by Lazyandhazy March 1, 2016

McMuffin 

damn po-lice......he didn't do McMuffin

let my son go, he didn't do McMuffin

McMuffin by allan88 September 7, 2018

McMuffin 

MCMUFFIN

The moment you realize he was someone s McMuffin

McMuffin by anonymous February 28, 2021