Internet Slang start's with F

F F***

F&A Forever and After
F***ing A$$hole

F2F Face To Face

F2P Free To Play
Files To Peers

F2T Free To Talk

F5 Refresh

F8 Fate

F9 Fine

F@ Fat

FA Fat Admirer
F*** All
F***ing Awesome

FAAK Falling Asleep At Keyboard

FAB Fabulous

FABU Fabulous

FACE PALM Slap forehead with the palm of your hand

FADED High, stoned, drunk

FAF Fit As F***
Funny As F***

FAFWOA For A Friend Without Access (when about to ask a silly question)

FAG Cigarette

FAGET Faggot, gay person (derogatory)

FAGGOT Insulting term for a homosexual

FAI Forget About It

FAIL Suck

FAK F***

FAM Family

FAMALAM Family, close friend

FAMO Friend, dude, family member etc

FANNYING Wasting time, messing about

FANTA F*** And Never Touch Again

FAO For Attention Of

FAP Sound effect for masturbation

FAQ Frequently Asked Question

FAS Funny A$$ S**t

FASHO For sure

FATS F*** All This S**t

FAUX PAS Social blunder (French for 'false step')

FAV Favorite

FB Facebook

FBB FaceBook Bitch

FBC FaceBook Chat

FBF Facebook Friend

FBGM F*** Bitches, Get Money

FBI Federal Bureau of Investigation

FBM Fine By Me

FBO Facebook Official

FBS F***ing Bulls**t

FBSM Full Body Sensual Massage

FBTW Fine, Be That Way

FBW Fly by wire

FC Fingers Crossed
Full Combo

FCFS First Come First Served

FCOL For Crying Out Loud

FCS For Christ's Sake

FCUK French Connection United Kingdom
F***

FDA Food and Drug Administration

FDS F*** Dat S**t

FE Fair Enough

FEAT Featuring

FEDZ Police

FEE Female

FEENING Craving, wanting really badly

FEH Expression of dismissal, disgust

FELLAS Close friends

FELLER Fellow, man

FEM The more feminine lesbian

FF Final Fantasy

FFA Free For All

FFM Two females and a male

FFR Flash Flash Revolution (game)
For Future Reference

FFS For F**** Sake

FFT Fan F***ing Tastic

FFTL From First To Last (band)

FG Fat Girl
Family Guy

FGJ For Great Justice

FGS For God's Sake

FGT Faggot

FH F**king Hell

FHE First Hand Experience

FHL F*** His/Her Life

FHM For Him Magazine

FI Forget It

FIA F*** It All

FIC Fanfiction

FICCL Frankly, I Couldn't Care Less

FIDIOT F***ing Idiot

FIF Fifth Amendment

FIFA Federation International de Football Association

FIFO First In First Out

FIGJAM F*** I'm Good, Just Ask Me

FIIK F*** If I Know

FIL Father-in-law

FILF Father I'd Like to F***

FILO First In, Last out

FIN Finished

FINA About to do (something)

FINK Snitch, informer

FINNA Going To

FIO Figure It Out

FISH First In Still Here

FIT Good lokking, hot, sexy

FITB Fill In The Blanks

FITCH F***ing bitch

FITE Fight

FITH F***ed In The Head

FIX A dose of drugs

FIXIN TO About to, getting ready to

FJ Foot Job

FK French Kiss

FKA Formerly Known As

FKU F*** You

FL Fake Laugh

FLA Florida

FLAFF Foot Loose And Fancy Free

FLAG Bandana

FLAGGED Banned

FLAKE OUT Cancel at the last minute

FLAME Insult someone over the internet

FLIPPING Mild version of F***ing

FLIR Forward Looking Infra Red

FLK Funny Looking Kid

FLOSS Show off

FLOSSING Showing off

FLS Flu-Like Symptoms

FLUFF Humorous/romantic fan fiction

FLY Zipper
Awesome, cool

FLYFF Fly For Fun (MMORPG)

FM Freqeuncy modulation (radio signal)

FMA Full Metal Alchemist

FMAO Freezing My A$$ Off

FMCG Fast Moving Consumer Goods

FMD F*** Me Dead

FMDIDGAD Frankly My Dear , I Don't Give A Damn

FMFL F*** My F***ing Life

FMH For Him Magazine

FMJ Full Metal Jacket

FML F*** My Life

FMLA Family and Medical Leave of Absence

FMLIA F***, My Life Is Average

FMP F*** Me Pumps

FMTKFYTFO For Me To Know, For You To Find Out

FMV Full Motion Video

FN F***ing

FNA For Necessary Action

FNB Football And Beer

FNE Free And Easy

FNG F***ing New Guy

FNX Thanks

FO F**k Off

FO SHO For Sure

FOA First Of All

FOAD F*** Off And Die

FOAF Friend Of A Friend

FOB Fresh Off the Boat

FOBR Fall Out Boy Rock (website)

FOC Free Of Charge

FOCL Falling Off Chair Laughing

FOD F*** Off and Die

FOF Full of Fail

FOFF F*** Off

FOFL Falling On Floor Laughing

FOFO Fourty Four caliber gun

FOH F*** Outa Here

FOI Freedom Of Information

FOL F*** Our Lives

FOLDED Drunk, wasted

FOMCL Falling Off My Chair Laughing

FOMO Fear Of Missing Out

FON Freak Of Nature

FOO Fool

FOOD Marijuana

FOOK F***

FOOPA Fat in belly area

FOPS Fake cops (security guards etc)

FOS Full Of S**t

FOSHO For Sure

FOTC Flight of the Conchords

FOTM Flavor Of The Month

FOTR Fellowship of the Ring (Tolkien)

FOYL F*** Off You Loser

FPMSL F***ing Pissed Myself Lauging

FPS First-Person Shooter (video game term)

FR For Real

FRAK Swear word from Battlestar Galactica

FRAPE Facebook Rape

FRAT Fraternity

FREAK Weirdo
Have sex

FRENCH Kiss using tongues

FRESH Very good, cool

FRESHIE Imigrant

FRILL For Real

FRONT Pretend, falsely represent

FROOB Free Noob. Non-paying player

FS For Sale
F***s Sake

FSAS Famous Stars and Straps (clothing)

FSB Front Side Bus

FSBM Full Sensual Body Message

FSHO For Sure

FSM Female Seeking Male

FSR For Some Reason

FSS F***ing Super Sweet

FSU Friends Stand United

FT F*** That
For Trade

FTA From The Article

FTASB Faster Than A Speeding Bullet

FTB F*** the BS

FTBOMH From The Bottom Of My Heart

FTD Fresh To Death

FTF First To Find

FTFA From The F***ing Article

FTFL For The F***ing Lose

FTFO F*** The F*** Off

FTFW For The F***ing Win

FTFY fixed that for you

FTL For The Loss
Faster Than Light

FTLOG For The Love Of God

FTM Female To Male

FTMFW For The Mother F***ing Win

FTP File Transfer Protocol

FTR For The Record

FTS F*** This S***

FTTB For The Time Being

FTUW For The Ultimate/über Win

FTW For The Win
F*** The World

FU F*** You

FU2 F*** You Too

FUAH F*** You Ass Hole

FUB Fat Ugly Bastard

FUBAR Fouled Up Beyond All Recognition

FUBB Fouled Up Beyond Belief

FUBR F***ed Up Beyond Recognition

FUBU Fouled Up Beyond Use

FUD Fear, Uncertainty, and Doubt

FUG F***ing Ugly

FUGLY F***ing Ugly

FUI F***ed Up Individual

FUK F***

FUMF F*** You Mother F***er

FUMTU F***ed Up More Than Usual

FUPA Fat Upper Pubic Area

FUQ Frequently Unasked Questions
F*** You

FUSTER CLUCK Cluster F***

FUTAB Feet Up, Take A Break

FUV F*** You Vehicle (derogatory term for SUV)

FUZZ Police

FW Forward

FWB Friends With Benefits

FWD Foward (Email)

FWIW For What It's Worth

FWM F*** With Me

FWP Friend With Privileges

FWTD Fate Worse Than Death

FX Effects

FY F*** You

FYA For Your Amusement

FYAD F*** You And Die

FYB F*** You, Bitch

FYE For Your Entertainment

FYEO For Your Eyes Only

FYF F*** Your Face

FYI For Your Information

FYL F*** Your Life

FYM Free Your Mind

FYN Fine

FYP Fixed Your Post

FYYFF F*** You, You F***ing F***