flentl 

Any non-musical sound heard when the audio from the final scene of an episode continues past the fade-to-black and the Executive Producer credits. From The West Wing Weekly podcast.

The ambulance siren flentl in the Season 1 finale was chilling.

flentl by Cliff Gardner September 12, 2016

fleeting 

-lasting for a very short time.

-When something happens quickly or doesn't last as long as you'd like, it is described as being fleeting.

"hoping to get a fleeting glimpse of a whale underwater"

fleeting by Vabe Tellurion December 18, 2022

Merryweather fleet's here, bro! 

A quote from the GTA V mission "Derailed". The line is spoken by main protagonist Trevor Phillips. The line has a hidden meaning to those who watch DarkViperAU, a popular Twitch streamer with a fantastic beard. The line is a metaphor for repitition and it continuously torments the mind of the streamer in question.

"Merryweather fleet's here, bro!" says Trevor Phillips

Merryweather fleet's here, bro! by DarkViperAU's Bitch January 13, 2021

Why fletch? 

An overused phrase in the MMORPG Oldschool Runescape during fights against the Wintertodt boss. Only newcomers and trolls use it.

Wintertodt is a group boss for which there is even a special server, world 309. At all times there are hundreds of players playing against Wintertodt. The boss is killed by feeding burning braziers with logs that can additionally be fletched for more reward points with the cost of decreased experience. Experience is commonly more valued, which leads inexperienced players into asking why so many fletch logs. The overused question is commonly parodised by asking: "Why fletch?"

Player 1: "How do I get enough points for a crate?"
Player 2: "Dood fletch"
Player 3: "Why fletch?"

Player A: "REEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE"
Player B: "Joel on Skype"
Player C: "Why fletch?"

Why fletch? by Sukoforiko August 7, 2018

Fleetwood Mac 

drugs

Hey, you wanna do Fleetwood Mac?
Yes! I love Fleetwood Mac so much! Their Dreams and Everywhere sensations are the best!

Fleetwood Mac by EL SEXO GRATIS September 16, 2023

Fleur Delacour 

An attractive, part-veela character in the Harry Potter series. She first appears in Goblet of Fire as a Triwizard champion and later on in Half Blood Prince. She is probably going to appear in the final book as it is supposed to start with her wedding with Bill Weasley.

Translates literally from French to "Flower of the Court"

I wish I looked like Fleur Delacour

Fleur Delacour by MarianneNZ November 10, 2006

fleur 

Fleur is a beautiful, funny person. Sometimes she is a bit crazy and weird, but always makes you smile. She can be a bit shy, but she is always someone you can talk to and she always understands.

Wow, Fleur is so amazing.

fleur by JellySmarties42 March 10, 2013