VFM - Value For Money.
WAH - From Wahei: peaceful, harmonious and calm (Japanese)
WAH - Wild Ass Humping
Water Sports - Urination play.
WF - Wild Fuck
WG - Working girl
White Knight - A poster who defends or "comes to the rescue" of a provider who has been reviewed poorly, regardless of whether the review is accurate.
With - With condom (e.g. French with = CBJ)
Without - Without condom. (e.g. French without = BBBJ)
WIR - Would I Repeat or Would I Return
WL - Working Lady
Working girl - An escort, prostitute, call girl, whatever the case may be.
WSW - White Street Walker