A piece of fabric used for mopping up semen after masturbation. An ideal wanky hanky would be about one foot square, in 3-tone cream camo pattern.
"My wanky hanky is so stiff you could surf on it!"
by Mark Neilson April 10, 2006
paper or textile used to prevent spillage during masterbation, especially one routinely used.
"When I found his wanky-hanky in the car, I nearly freaked."
by R. Clayton Jr November 29, 2005