- W/
- With (frequently just "w/")
- W/O
- WithOut (frequently just "w/o")
- W3
- see WWW
- W8
- Wait
- W8ING
- WaitING
- WAB?
- What, Another Bill?
- WAEF
- When All Else Fails
- WAG
- Wild-Assed Guess
- WALOC
- What A Load of Crap
- WAMHD
- Windows Ate My Hard Disc
- WAMKSAM
- Why Are My Kids (or Kitties) Staring At Me?
- WB
- Welcome Back
- WCAGA
- What Comes Around, Goes Around
- WCTYBTWHTKY
- We Could Tell You, But Then We'd Have To Kill You
- WDF
- What Da Fuck?
- WDYCA(I)
- What Do You Call An (Irishman)
- WDYMBT
- What Do (or Did) You Mean By That?
- WEFT
- Wrong Every Fucking Time
- WFHIT
- What Fresh Hell Is This? (from the writings of Dorothy Parker)
- WFM
- Works For Me
- WGAS
- Who Gives A Shit
- WIBAMU
- Well I'll Be A Monkey's Uncle
- WIBNIF
- Wouldn't If Be Nice IF...
- WIMP
- Windows, Icons, Mouse, Pull-down menus; Windows, Icons, Menus Pointer
- WIZOP
- Wizard Sysop (the primary forum administrator for a forum)
- WMMOWS
- Wash My Mouth Out With Soap
- WOA
- Work Of Art
- WOFTAM
- Waste Of Flaming Time And Money
- WOLF
- Witless One Line Followup
- WOM
- Word Of Mouth
- WOMBAT
- Waste Of Money, Brains, And Time
- WOWF
- Witless One Word Followup
- WRATGAS
- Who Really And Truly Gives A Shit
- WRT
- With Regard To; With Respect To
- WTF
- What The Fuck
- WTFDIC
- What The Fuck Do I Care
- WTFDIK
- What The Fuck Do I Know
- WTFDYTYA
- Who The Fuck Do You Think You Are
- WTFIIWT_A
- What The Fuck Is It With These _____ Anyway?
- WTFO
- What The Fuck, Over (Reply)
- WTFWT
- "What the Fuck Was That?" - Mayor of Hiroshima
- WTG
- Way To Go
- WTH
- What The Hell (or Heck)
- WWS
- Wife Wants Sex (please wait a tic)
- WWW
- World Wide Web; World Wide Waste; World Wide Waiting; World Wild Web; Why? Why? Why?
- WYGIWYG
- What You Got Is What You Get
- WYGIWYPF
- What You Get Is What You Pay For
- WYLABOCTGWTR
- Would You Like A Bowl Of Cream To Go With That Remark?
- WYLASOMWTC
- Would You Like A Saucer Of Milk With That Comment?
- WYP
- What's Your Point?
- WYSBANRTWYG
- What You See Bears Absolutely No Relation To What You Get
- WYSBYGI
- What You See Before You Get It
- WYSIWYG
- What You See Is What You Get
- WYSOH
- Where's Your Sense Of Humor?
- WYTYSYDG
- What You Thought You Saw, You Didn't Get
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