marty mcfly 

noun: a puffy vest, usually made of down, as worn by Marty McFly in Back to the Future.

It is a little bit chilly today. I better wear my marty mcfly.

marty mcfly by Sarah234 September 20, 2006

Marty McFly 

noun or verb
a specific type of threesome with two partners separately but at the same time due to the 'Back to the Future' like time travel that occurs in certain countries on the first Sunday in November at exactly 2AM.

"I had sex with Jessica at 2AM, and precisely one hour later I had sex with Bridge... at the exact same time! Its a Back to the Future threesome! I did a Marty McFly!"
"Whoah, this is heavy."

Marty McFly by Great Scottt February 3, 2019

Marty McFly 

To hit someone and run.

He keyed my car so I did a Marty McFly and drove off before he could catch me.

Marty McFly by BsPs January 13, 2009

Marty McFly 

Being unconscious or passed out and waking up to find your mother hitting on you.

No more Crystal Meth cooladas, last time I woke up all Marty McFly. Mother's Day's gonna be weird this year.

Marty McFly by Dr. Dementia August 1, 2016

Marty McFly 

It's a time travel joke about making someone sleep with their mom.

I am going to take you back in time and Marty McFly you.

Marty McFly by cmdr bluecrash September 21, 2021

Marty Mcfly 

A type of fashion mistake where you keep 30 year old shirts so you look like you are back from the future.

It's Marty Mcfly himself.

Marty Mcfly by JuishTraditions November 14, 2021

Marty-McFly 

A trick in skateboarding. When you are done skating for the time being you and kick the tail of the board sending it into the air and lands in your grasp.

Explanation: Why are those kids so astoundingly happy when they received their (skate/hover)board back from Marty McFly in the Back to the Future trilogy? The only trick that he does is kick the board up to his hands and give it to the child... silly Marty, you ain't that sweet.

Ex 1: "Dude you've been skating all day... Marty-McFly that bitch and lets do something else"

Ex 2: "Yo, Marty-McFly your board and let me try a kickflip"

Marty-McFly by Stevenoni January 20, 2008