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1.
A manicure performed on oneself using a Leatherman or similar pocket knife or tool. Usually done by men.
Dude your nails look good! Give yourself a leathermanicure last night?

Bro your nails are snagging on everything, I think it's time to whip out the pocket knife and give yourself a leathermanicure.
by EJ42 April 30, 2013