BFL 

A "big fat loser"

P1: Lylii is a BFL!
P2: ikr she's huge!

BFL by Boomboomclat February 16, 2024

BFL 

The band football league. Played by a bunch of band kids in highschool who wish the were on the field instead of in the sands playing the fight song.

Jimmy is really good at BFL, he could pass as a mediocre QB during middle school!

BFL by Chad_Broskii June 22, 2025

BFL (Brendan Fraser Laugh) 

Something that should have been defined a while ago, the acronym BFL is a response to a semi-witty, but still obnoxious joke. In reference to Brendan Fraser's laugh at the Golden Globes.

Person A: "I am so thirsty!"
Person B: "Hello Mr. Thirsty, may I call you so..."
Person A: "BFL (Brendan Fraser Laugh)"

BFL (Brendan Fraser Laugh) by thejokester159 June 18, 2011

BFLTDE 

BFLTDE is short for Big Fat Long Thick Dick Energy. It’s a type of energy that a guy gives you.

That dude has BFLTDE

BFLTDE by Swiliams January 30, 2020

bflp 

a slang used for a biker boy with a football obsessed father
“Bate Franta La Penalty”

“look’s bflp!”
“is he on his bike?”
“of course he’s an anti social”

bflp by h4unt3dr34p3r July 10, 2023

bflk 

Big Fat Lazy Kid - Somebody that never grows up. They just sleep all day and never become anyone of importance. Usually tend to drop out of college and struggle to hold a job longer than a few weeks.

Mike is such a bflk ever since he stopped going to school.

bflk by Kellando March 25, 2008

Bflumptuousinousiness

The way someone makes you feel inside

ManA WOW she looks Bflumptuousinousiness
ManB sure does

Bflumptuousinousiness by Mr.virginal January 31, 2022