FDL 

The FDL is an extention of the DL or down low, the fdl meaning f*cking Down low. Usually used to express that the fact just disclosed should never be shared

jim: Ohh your gonna propose to Mary tomarrow? Ok ill keep it on the DL.

joe: no Jim, you better keep it on the FDL.

FDL by <blank><blank> January 9, 2009

FDL 

Stands for Fashionably Dressed Lesbian. A lesbian with the fashion sense of a gay male.

Michelle: Did you see Sandy’s cardigan today?! It’s fabulous! Very modern.

Nicole: Well she *is* an FDL, I’d expect no less from her.

FDL by NicoleLF December 9, 2008

FDL 

Fibre Defense League

Praise the beanman

Are you part of the FDL? Why, yes i am

FDL by Zypher. July 6, 2019

FDL 

Fat Dick Lover

Oh my God! she looks like a seal, she loves sex! fattie loves to suck dicks!
She's a FDL!!!!!!

FDL by VelvetDancer October 27, 2009

FDL 

Acronym for "Fake Dumb Loser".

Baylee: Did you see Mandy today at school? FDL much?

Mark: She doesn't need to wear a mini skirt. Ever.

FDL by CoconutMuffin June 21, 2011

FDL 

Fucking Douche Lord

That guy is such a douche! He stole my girl!
Mannn he's an FDL!

FDL by MMFS11 January 19, 2011

Fdl 

Fuck Da Law

Jamal: you heard doughboy got locked up bro?
Damian:Yeah FDL

Fdl by Mr.2200 October 18, 2018