What is Adw?
1.
All Day Wank.
Such as a gent with nothing better to do might indulge in on a Sunday - taking one's time, repeatedly approaching climax and then backing away from the brink in order to prolong the fun. Throughout the duration of an ADW it is not unknown for the ADWer to absorb as many as 17 hours of video porn, or anything up to 12,000 images in one sitting, punctuated only by brief breaks for sustenance.
See
2.
All Day Wank
My hand is so knackered from an ADW