MFL 

Market-Frankford Line - Philadelphia subway

OMG! 13th St on the MFL smells so nasty.

MFL by PJM777 April 23, 2006

MFL 

Mother fucking life

Go get a MFL

MFL by Chickpea Queen June 1, 2019

MFL 

MFL, or as it's more commonly known, Mental Fuck List is;

A list in one's head of men/women/men and women that a person would Love to fuck.

Although these targets may not necessarily be entirely realistic, it reassures the person that in their head they still have the ability and choice of whether to fuck the person(s) or not.

Ques; "What you thinking about over there mate?"

Answ from other mate; ."I bet he's thinking about his MFL, he can't wait to bone Ellie, did you see his eyes light up on Saturday night?!"

MFL by PlatypusEnslaver July 28, 2011

MFL 

Monkey Faced Liberal. Someone like Spud who lets his chin hairs grow out every Winter just so they can attract chimps and other females with excessive underarm hair. Not to be confused with JFL, who actually is an MFL but without all the face hair.

JFL and his SMIB homies be spankin' the monkey so much that they be one big MFL circle jerk, mofo.

MFL by RNC January 15, 2008

MFL 

Abbreviation of Mad for the Lash. Describes somebody who always goes out and gets steaming and see's themselves as lash bandicoot or the archbishop of steamingsville.

Martin:'Look over by there, there's Colin the steaming mess'
James:' Yeah he's always out, thinks he's crazy'
Martin:' MFL'

MFL by messy fresher May 16, 2011

MFL 

My forbidden love

She is MFL

MFL by Dan3507 February 21, 2018

MFL Rock 

An MFL rock is a rock that is painted in the colour of a countries flag and can be found around thorpe st andrew school. If you bring your MFL rock to the MFL office it can be exchanged for a pencil or chocolate.

Slang for an erection

(first context)
Curly fries: I've found an Mfl rock

friend: woah dude

(Second context)
Dude 1: wahey he has an MFL rock
group: whahey

MFL Rock by xX_C00l_9uy_69Xx October 15, 2018