When you masturbate with both hands, alternating strokes so that you are going in the same direction in a continuous motion, like how a magician pulls on an infinite handkerchief.
Last night I lubed up both hands and gave myself a tug on the magician's handkerchief.
by Adam Bones May 14, 2016
A particularly long hair you find in your mouth after indulging in a Fish Supper.
"Good Lord Bertie, it feels as though I've swallowed a Magician's Handkerchief!"
by LeTrenger June 14, 2009