Marty McFlyin 

Alternative word for “Blacking out” Minimum of 4 hours or more. Going back to the future due to incoherence. Time traveling is what your really doing.

I got so fucked up last night. I was Marty McFlyin the entire night.

Marty McFlyin by Son of Robert February 17, 2019

Marty McFlying 

To walk backwards haphazardly, usually resulting in an unwanted encounter or physical altercation. Derives from Marty McFly from "Back to the future", as this action usually precedes a very bad event.

That kid over there was Marty McFlying all over the store and knocked down the tower of sodas.

Marty McFlying by F. Millmore April 23, 2010

marti mcfly

A user of woman with a giant cock, he will promise you the world to get you into bed but won't be there by morning

'Marti mclfy is in a relationship....half hour later.....marti mcfly is single

marti mcfly by just_a_cunt94 June 6, 2011

Morty McFly

(v.) To alter time in some way that, in the future, you don’t exist. Derived from the Latin word for death and Marty McFly from Back to the Future.

Poor Bobby went and Morty McFly’ed himself.

Morty McFly by Shocken 2 April 27, 2020