Performing the ol' reach around on yourself, an advanced masturbation technique. Word origins can be traced to dudefuckinghellyeah (DFHY) at burning man 2009.
The stranger is getting old, I think today I'll change things up and pull a dactyl backjack when I'm wanking.
by 1009 September 20, 2009
Get the Dactyl Backjack mug.