What is Motor Finger?
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1) After working on any mechanical project, in which your hands become covered in grease, with no possibility of cleaning the residue from under the finger nails or prints; to stimulate the old ladies vagina causing a slight irritation only brought up the next day after you have fallen asleep in satisfaction of completing a hard days work.
Dude, last night after i finished the tranny on the dodge I totally motor finger the old lady before bed.
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Random Words:
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When you swing your penis around in a circle and make the noise of a helicopter, and smack an innocent bystander in the forehead with it..