Fimbl 

A friend of yours, that you simultaneously love and hate.

A hated friend of yours: "Am I your best friend?"
You: "Hell no, you're my fimbl"

Fimbl by aggro_olli July 3, 2022

Fiblets 

The little bit of ass that hangs out below the daisy dukes

Did you see the Fiblets on that
One when she walked by

Fiblets by Branddon Carter May 1, 2015

Fumbled the bag

When you got a good looking girl that was down for you, but you fuck it up and now she don’t want you back!

You had her, but you lost her?? You fumbled the bag bruh!

Fumbled the bag by hoodigan June 4, 2021

Fatal fumble 

Dropping a phone or tech gadget only to pick it up and find out it just ain't the same. It's broke. cracked screen damaged phone bricked

I'm so pissed at her cause she bumped into me and made me do a fatal fumble.

I'm only using this phone cause I had a fatal fumble with my other one.

Fatal fumble by Summerbees May 24, 2011

fambloski 

Brandin Cooks favorite word, definition unknown at the moment. But we currently think its a mix of fam and broski to form the compound word Fambloski.

Goodnight fambloski, see you tomorrow!

fambloski by Chad the Pats Fan November 15, 2017

Fumblemickdumbderkins 

A big word used to describe an even bigger idiot

That fumblemickdumbderkins is the worst person I've met.

Fumblemickdumbderkins by ItsRedGrover December 13, 2021

Fumble 

When one is given a romantic or sexual chance with another and somehow messes up

He was giving really obvious hints that he liked her! How could she like him back but be unable to tell? She fumbled.

Fumble by nolivesmatterdumbo May 28, 2023