FU 

Fuck You

FU Motherfucker! Hahaha...

FU by Best User On Urban Dictionary August 10, 2025

Fu** 

WT*

Noob1234:destroys my home in Minecraft me:Fu** u noob1234

Fu** by Firesmile 5555 September 21, 2020

-fu 

skill

"Your kung-fu is good, but still!" "Your driving-fu better be pretty good if you're going to win the race."

-fu by Industrio Melman March 14, 2003

fu- 

Add the prefix "fu" to any word adding the adjectival form of the word "fuck".

It's fu-hot.=It's fucking hot.
Cali's fu-sexy=Cali's fuckin sexy!

fu- by summer, californ-i-a, and colag. October 7, 2007

FU- 

Its the word “FUCK” but you never got to end it

1: “we’ve been trying to reach you about your car’s extended warranty.”
2: “FU-“

FU- by .unl0ded_3rror May 27, 2023

;(fu

A defensive semicolon placed before a JavaScript IIFE that looks like a Gen-Z emoticon for "winking sadface, f*** you." Originated when two run_script() calls get concatenated without a statement terminator, causing unshift() to return 15 which then tries to invoke (function(){...})() as 15(function(){...})(). The semicolon breaks the invocation chain, restoring order to the universe.

Etymology: Discovered during a late-night Claude Code session debugging lightweight-charts hotkeys in a crypto charting app called Kore AI. The developer saw the pattern ;(function() and immediately recognized it as the most honest thing JavaScript has ever produced.

"My hotkey wasn't working so I added a ;(fu and the watchlist finally toggled."

1) what?

2) ;(fu

;(fu by drstarheartsong March 15, 2026

Fuח

Fuck plus!

The "ח" is a Hebrew letter pronounced like the ch in l'chaim

Versatile, as it is not an actual swear word, yet has a harsher sound than fuck and the strength of combining two languages.

Fuח you.
Fuח me.
That is waaay Fuחed up.
That was Fuחing awesome.

Fuח by Bursts Of Beauty August 10, 2016