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1.
The act of running to the bathroom or wherever the tissues are with your pants around your ankles after masturbating.

Should have had the paper towels close by before you started, oh well.
Should have had the paper towels close by before I started, oh well I'll just have to do the white knuckle shuffle afterward.
by angry Dick March 21, 2011
 
2.
A fast & furious wank,usually when time is short & the need is great.
She was due home any minute,just enough time for a white knuckle shuffle
by Francis B November 01, 2007